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/se3-unattended/var/se3/unattended/install/linuxaux/opt/perl/lib/5.10.0/i586-linux-thread-multi/CORE/ -> perl.h (source)

   1  /*    perl.h
   2   *
   3   *    Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999,
   4   *    2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, by Larry Wall and others
   5   *
   6   *    You may distribute under the terms of either the GNU General Public
   7   *    License or the Artistic License, as specified in the README file.
   8   *
   9   */
  10  
  11  #ifndef H_PERL
  12  #define H_PERL 1
  13  
  14  #ifdef PERL_FOR_X2P
  15  /*
  16   * This file is being used for x2p stuff.
  17   * Above symbol is defined via -D in 'x2p/Makefile.SH'
  18   * Decouple x2p stuff from some of perls more extreme eccentricities.
  19   */
  20  #undef MULTIPLICITY
  21  #undef USE_STDIO
  22  #define USE_STDIO
  23  #endif /* PERL_FOR_X2P */
  24  
  25  #if defined(DGUX)
  26  #include <sys/fcntl.h>
  27  #endif
  28  
  29  #ifdef VOIDUSED
  30  #   undef VOIDUSED
  31  #endif 
  32  #define VOIDUSED 1
  33  
  34  #ifdef PERL_MICRO
  35  #   include "uconfig.h"
  36  #else
  37  #   ifndef USE_CROSS_COMPILE
  38  #       include "config.h"
  39  #   else
  40  #       include "xconfig.h"
  41  #   endif
  42  #endif
  43  
  44  /* See L<perlguts/"The Perl API"> for detailed notes on
  45   * PERL_IMPLICIT_CONTEXT and PERL_IMPLICIT_SYS */
  46  
  47  /* Note that from here --> to <-- the same logic is
  48   * repeated in makedef.pl, so be certain to update
  49   * both places when editing. */
  50  
  51  #ifdef PERL_IMPLICIT_SYS
  52  /* PERL_IMPLICIT_SYS implies PerlMemShared != PerlMem
  53     so use slab allocator to avoid lots of MUTEX overhead
  54   */
  55  #  ifndef PL_OP_SLAB_ALLOC
  56  #    define PL_OP_SLAB_ALLOC
  57  #  endif
  58  #endif
  59  
  60  #ifdef USE_ITHREADS
  61  #  if !defined(MULTIPLICITY)
  62  #    define MULTIPLICITY
  63  #  endif
  64  #endif
  65  
  66  #ifdef PERL_GLOBAL_STRUCT_PRIVATE
  67  #  ifndef PERL_GLOBAL_STRUCT
  68  #    define PERL_GLOBAL_STRUCT
  69  #  endif
  70  #endif
  71  
  72  #ifdef PERL_GLOBAL_STRUCT
  73  #  ifndef MULTIPLICITY
  74  #    define MULTIPLICITY
  75  #  endif
  76  #endif
  77  
  78  #ifdef MULTIPLICITY
  79  #  ifndef PERL_IMPLICIT_CONTEXT
  80  #    define PERL_IMPLICIT_CONTEXT
  81  #  endif
  82  #endif
  83  
  84  /* undef WIN32 when building on Cygwin (for libwin32) - gph */
  85  #ifdef __CYGWIN__
  86  #   undef WIN32
  87  #   undef _WIN32
  88  #endif
  89  
  90  #if defined(__SYMBIAN32__) || (defined(__VC32__) && defined(WINS))
  91  #   ifndef SYMBIAN
  92  #       define SYMBIAN
  93  #   endif
  94  #endif
  95  
  96  #ifdef __SYMBIAN32__
  97  #  include "symbian/symbian_proto.h"
  98  #endif
  99  
 100  /* Any stack-challenged places.  The limit varies (and often
 101   * is configurable), but using more than a kilobyte of stack
 102   * is usually dubious in these systems. */
 103  #if defined(EPOC) || defined(__SYMBIAN32__)
 104  /* EPOC/Symbian: need to work around the SDK features. *
 105   * On WINS: MS VC5 generates calls to _chkstk,         *
 106   * if a "large" stack frame is allocated.              *
 107   * gcc on MARM does not generate calls like these.     */
 108  #   define USE_HEAP_INSTEAD_OF_STACK
 109  #endif
 110  
 111  #/* Use the reentrant APIs like localtime_r and getpwent_r */
 112  /* Win32 has naturally threadsafe libraries, no need to use any _r variants. */
 113  #if defined(USE_ITHREADS) && !defined(USE_REENTRANT_API) && !defined(NETWARE) && !defined(WIN32) && !defined(PERL_DARWIN)
 114  #   define USE_REENTRANT_API
 115  #endif
 116  
 117  /* <--- here ends the logic shared by perl.h and makedef.pl */
 118  
 119  /*
 120   * PERL_DARWIN for MacOSX (__APPLE__ exists but is not officially sanctioned)
 121   * (The -DPERL_DARWIN comes from the hints/darwin.sh.)
 122   * __bsdi__ for BSD/OS
 123   */
 124  #if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(PERL_DARWIN) || defined(__bsdi__) || defined(BSD41) || defined(BSD42) || defined(BSD43) || defined(BSD44)
 125  #   ifndef BSDish
 126  #       define BSDish
 127  #   endif
 128  #endif
 129  
 130  #ifdef PERL_GLOBAL_STRUCT
 131  #  ifndef PERL_GET_VARS
 132  #    ifdef PERL_GLOBAL_STRUCT_PRIVATE
 133         extern struct perl_vars* Perl_GetVarsPrivate();
 134  #      define PERL_GET_VARS() Perl_GetVarsPrivate() /* see miniperlmain.c */
 135  #      ifndef PERLIO_FUNCS_CONST
 136  #        define PERLIO_FUNCS_CONST /* Can't have these lying around. */
 137  #      endif
 138  #    else
 139  #      define PERL_GET_VARS() PL_VarsPtr
 140  #    endif
 141  #  endif
 142  #endif
 143  
 144  #define pVAR    register struct perl_vars* my_vars PERL_UNUSED_DECL
 145  
 146  #ifdef PERL_GLOBAL_STRUCT
 147  #  define dVAR        pVAR    = (struct perl_vars*)PERL_GET_VARS()
 148  #else
 149  #  define dVAR        dNOOP
 150  #endif
 151  
 152  #ifdef PERL_IMPLICIT_CONTEXT
 153  #  ifndef MULTIPLICITY
 154  #    define MULTIPLICITY
 155  #  endif
 156  #  define tTHX    PerlInterpreter*
 157  #  define pTHX  register tTHX my_perl PERL_UNUSED_DECL
 158  #  define aTHX    my_perl
 159  #  ifdef PERL_GLOBAL_STRUCT
 160  #    define dTHXa(a)    dVAR; pTHX = (tTHX)a
 161  #  else
 162  #    define dTHXa(a)    pTHX = (tTHX)a
 163  #  endif
 164  #  ifdef PERL_GLOBAL_STRUCT
 165  #    define dTHX        dVAR; pTHX = PERL_GET_THX
 166  #  else
 167  #    define dTHX        pTHX = PERL_GET_THX
 168  #  endif
 169  #  define pTHX_        pTHX,
 170  #  define aTHX_        aTHX,
 171  #  define pTHX_1    2
 172  #  define pTHX_2    3
 173  #  define pTHX_3    4
 174  #  define pTHX_4    5
 175  #  define pTHX_5    6
 176  #  define pTHX_6    7
 177  #  define pTHX_7    8
 178  #  define pTHX_8    9
 179  #  define pTHX_9    10
 180  #  if defined(DEBUGGING) && !defined(PERL_TRACK_MEMPOOL)
 181  #    define PERL_TRACK_MEMPOOL
 182  #  endif
 183  #else
 184  #  undef PERL_TRACK_MEMPOOL
 185  #endif
 186  
 187  #define STATIC static
 188  #define CPERLscope(x) x
 189  #define CPERLarg void
 190  #define CPERLarg_
 191  #define _CPERLarg
 192  #define PERL_OBJECT_THIS
 193  #define _PERL_OBJECT_THIS
 194  #define PERL_OBJECT_THIS_
 195  #define CALL_FPTR(fptr) (*fptr)
 196  
 197  #define CALLRUNOPS  CALL_FPTR(PL_runops)
 198  
 199  #define CALLREGCOMP(sv, flags) Perl_pregcomp(aTHX_ (sv),(flags))
 200  
 201  #define CALLREGCOMP_ENG(prog, sv, flags) \
 202      CALL_FPTR(((prog)->comp))(aTHX_ sv, flags)
 203  #define CALLREGEXEC(prog,stringarg,strend,strbeg,minend,screamer,data,flags) \
 204      CALL_FPTR((prog)->engine->exec)(aTHX_ (prog),(stringarg),(strend), \
 205          (strbeg),(minend),(screamer),(data),(flags))
 206  #define CALLREG_INTUIT_START(prog,sv,strpos,strend,flags,data) \
 207      CALL_FPTR((prog)->engine->intuit)(aTHX_ (prog), (sv), (strpos), \
 208          (strend),(flags),(data))
 209  #define CALLREG_INTUIT_STRING(prog) \
 210      CALL_FPTR((prog)->engine->checkstr)(aTHX_ (prog))
 211  
 212  #define CALLREG_AS_STR(mg,lp,flags,haseval) \
 213          Perl_reg_stringify(aTHX_ (mg), (lp), (flags), (haseval))
 214  #define CALLREG_STRINGIFY(mg,lp,flags) CALLREG_AS_STR(mg,lp,flags,0)
 215  
 216  #define CALLREGFREE(prog) \
 217      Perl_pregfree(aTHX_ (prog))
 218  
 219  #define CALLREGFREE_PVT(prog) \
 220      if(prog) CALL_FPTR((prog)->engine->free)(aTHX_ (prog))
 221  
 222  #define CALLREG_NUMBUF_FETCH(rx,paren,usesv)                                \
 223      CALL_FPTR((rx)->engine->numbered_buff_FETCH)(aTHX_ (rx),(paren),(usesv))
 224  
 225  #define CALLREG_NUMBUF_STORE(rx,paren,value) \
 226      CALL_FPTR((rx)->engine->numbered_buff_STORE)(aTHX_ (rx),(paren),(value))
 227  
 228  #define CALLREG_NUMBUF_LENGTH(rx,sv,paren)                              \
 229      CALL_FPTR((rx)->engine->numbered_buff_LENGTH)(aTHX_ (rx),(sv),(paren))
 230  
 231  #define CALLREG_NAMED_BUFF_FETCH(rx, key, flags) \
 232      CALL_FPTR((rx)->engine->named_buff)(aTHX_ (rx), (key), NULL, ((flags) | RXapif_FETCH))
 233  
 234  #define CALLREG_NAMED_BUFF_STORE(rx, key, value, flags) \
 235      CALL_FPTR((rx)->engine->named_buff)(aTHX_ (rx), (key), (value), ((flags) | RXapif_STORE))
 236  
 237  #define CALLREG_NAMED_BUFF_DELETE(rx, key, flags) \
 238      CALL_FPTR((rx)->engine->named_buff)(aTHX_ (rx),(key), NULL, ((flags) | RXapif_DELETE))
 239  
 240  #define CALLREG_NAMED_BUFF_CLEAR(rx, flags) \
 241      CALL_FPTR((rx)->engine->named_buff)(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_CLEAR))
 242  
 243  #define CALLREG_NAMED_BUFF_EXISTS(rx, key, flags) \
 244      CALL_FPTR((rx)->engine->named_buff)(aTHX_ (rx), (key), NULL, ((flags) | RXapif_EXISTS))
 245  
 246  #define CALLREG_NAMED_BUFF_FIRSTKEY(rx, flags) \
 247      CALL_FPTR((rx)->engine->named_buff_iter)(aTHX_ (rx), NULL, ((flags) | RXapif_FIRSTKEY))
 248  
 249  #define CALLREG_NAMED_BUFF_NEXTKEY(rx, lastkey, flags) \
 250      CALL_FPTR((rx)->engine->named_buff_iter)(aTHX_ (rx), (lastkey), ((flags) | RXapif_NEXTKEY))
 251  
 252  #define CALLREG_NAMED_BUFF_SCALAR(rx, flags) \
 253      CALL_FPTR((rx)->engine->named_buff)(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_SCALAR))
 254  
 255  #define CALLREG_NAMED_BUFF_COUNT(rx) \
 256      CALL_FPTR((rx)->engine->named_buff)(aTHX_ (rx), NULL, NULL, RXapif_REGNAMES_COUNT)
 257  
 258  #define CALLREG_NAMED_BUFF_ALL(rx, flags) \
 259      CALL_FPTR((rx)->engine->named_buff)(aTHX_ (rx), NULL, NULL, flags)
 260  
 261  #define CALLREG_PACKAGE(rx) \
 262      CALL_FPTR((rx)->engine->qr_package)(aTHX_ (rx))
 263  
 264  #if defined(USE_ITHREADS)         
 265  #define CALLREGDUPE(prog,param) \
 266      Perl_re_dup(aTHX_ (prog),(param))
 267  
 268  #define CALLREGDUPE_PVT(prog,param) \
 269      (prog ? CALL_FPTR((prog)->engine->dupe)(aTHX_ (prog),(param)) \
 270            : (REGEXP *)NULL) 
 271  #endif
 272  
 273  
 274  
 275  
 276  
 277  /*
 278   * Because of backward compatibility reasons the PERL_UNUSED_DECL
 279   * cannot be changed from postfix to PERL_UNUSED_DECL(x).  Sigh.
 280   *
 281   * Note that there are C compilers such as MetroWerks CodeWarrior
 282   * which do not have an "inlined" way (like the gcc __attribute__) of
 283   * marking unused variables (they need e.g. a #pragma) and therefore
 284   * cpp macros like PERL_UNUSED_DECL cannot work for this purpose, even
 285   * if it were PERL_UNUSED_DECL(x), which it cannot be (see above).
 286   *
 287   */
 288  
 289  #if defined(__SYMBIAN32__) && defined(__GNUC__)
 290  #  ifdef __cplusplus
 291  #    define PERL_UNUSED_DECL
 292  #  else
 293  #    define PERL_UNUSED_DECL __attribute__((unused))
 294  #  endif
 295  #endif
 296  
 297  #ifndef PERL_UNUSED_DECL
 298  #  if defined(HASATTRIBUTE_UNUSED) && !defined(__cplusplus)
 299  #    define PERL_UNUSED_DECL __attribute__unused__
 300  #  else
 301  #    define PERL_UNUSED_DECL
 302  #  endif
 303  #endif
 304   
 305  /* gcc -Wall:
 306   * for silencing unused variables that are actually used most of the time,
 307   * but we cannot quite get rid of, such as "ax" in PPCODE+noargs xsubs
 308   */
 309  #ifndef PERL_UNUSED_ARG
 310  #  if defined(lint) && defined(S_SPLINT_S) /* www.splint.org */
 311  #    include <note.h>
 312  #    define PERL_UNUSED_ARG(x) NOTE(ARGUNUSED(x))
 313  #  else
 314  #    define PERL_UNUSED_ARG(x) ((void)x)
 315  #  endif
 316  #endif
 317  #ifndef PERL_UNUSED_VAR
 318  #  define PERL_UNUSED_VAR(x) ((void)x)
 319  #endif
 320  
 321  #ifdef USE_ITHREADS
 322  #  define PERL_UNUSED_CONTEXT PERL_UNUSED_ARG(my_perl)
 323  #else
 324  #  define PERL_UNUSED_CONTEXT
 325  #endif
 326  
 327  #define NOOP /*EMPTY*/(void)0
 328  #if !defined(HASATTRIBUTE_UNUSED) && defined(__cplusplus)
 329  #define dNOOP /*EMPTY*/(void)0 /* Older g++ has no __attribute((unused))__ */
 330  #else
 331  #define dNOOP extern int /*@unused@*/ Perl___notused PERL_UNUSED_DECL
 332  #endif
 333  
 334  #ifndef pTHX
 335  /* Don't bother defining tTHX and sTHX; using them outside
 336   * code guarded by PERL_IMPLICIT_CONTEXT is an error.
 337   */
 338  #  define pTHX        void
 339  #  define pTHX_
 340  #  define aTHX
 341  #  define aTHX_
 342  #  define dTHXa(a)    dNOOP
 343  #  define dTHX        dNOOP
 344  #  define pTHX_1    1    
 345  #  define pTHX_2    2
 346  #  define pTHX_3    3
 347  #  define pTHX_4    4
 348  #  define pTHX_5    5
 349  #  define pTHX_6    6
 350  #  define pTHX_7    7
 351  #  define pTHX_8    8
 352  #  define pTHX_9    9
 353  #endif
 354  
 355  #ifndef dVAR
 356  #  define dVAR        dNOOP
 357  #endif
 358  
 359  /* these are only defined for compatibility; should not be used internally */
 360  #if !defined(pTHXo) && !defined(PERL_CORE)
 361  #  define pTHXo        pTHX
 362  #  define pTHXo_    pTHX_
 363  #  define aTHXo        aTHX
 364  #  define aTHXo_    aTHX_
 365  #  define dTHXo        dTHX
 366  #  define dTHXoa(x)    dTHXa(x)
 367  #endif
 368  
 369  #ifndef pTHXx
 370  #  define pTHXx        register PerlInterpreter *my_perl
 371  #  define pTHXx_    pTHXx,
 372  #  define aTHXx        my_perl
 373  #  define aTHXx_    aTHXx,
 374  #  define dTHXx        dTHX
 375  #endif
 376  
 377  /* Under PERL_IMPLICIT_SYS (used in Windows for fork emulation)
 378   * PerlIO_foo() expands to PL_StdIO->pFOO(PL_StdIO, ...).
 379   * dTHXs is therefore needed for all functions using PerlIO_foo(). */
 380  #ifdef PERL_IMPLICIT_SYS
 381  #  ifdef PERL_GLOBAL_STRUCT_PRIVATE
 382  #    define dTHXs        dVAR; dTHX
 383  #  else
 384  #    define dTHXs        dTHX
 385  #  endif
 386  #else
 387  #  ifdef PERL_GLOBAL_STRUCT_PRIVATE
 388  #    define dTHXs        dVAR
 389  #  else
 390  #    define dTHXs        dNOOP
 391  #  endif
 392  #endif
 393  
 394  #undef START_EXTERN_C
 395  #undef END_EXTERN_C
 396  #undef EXTERN_C
 397  #ifdef __cplusplus
 398  #  define START_EXTERN_C extern "C" {
 399  #  define END_EXTERN_C }
 400  #  define EXTERN_C extern "C"
 401  #else
 402  #  define START_EXTERN_C
 403  #  define END_EXTERN_C
 404  #  define EXTERN_C extern
 405  #endif
 406  
 407  /* Some platforms require marking function declarations
 408   * for them to be exportable.  Used in perlio.h, proto.h
 409   * is handled either by the makedef.pl or by defining the
 410   * PERL_CALLCONV to be something special.  See also the
 411   * definition of XS() in XSUB.h. */
 412  #ifndef PERL_EXPORT_C
 413  #  ifdef __cplusplus
 414  #    define PERL_EXPORT_C extern "C"
 415  #  else
 416  #    define PERL_EXPORT_C extern
 417  #  endif
 418  #endif
 419  #ifndef PERL_XS_EXPORT_C
 420  #  ifdef __cplusplus
 421  #    define PERL_XS_EXPORT_C extern "C"
 422  #  else
 423  #    define PERL_XS_EXPORT_C
 424  #  endif
 425  #endif
 426  
 427  #ifdef OP_IN_REGISTER
 428  #  ifdef __GNUC__
 429  #    define stringify_immed(s) #s
 430  #    define stringify(s) stringify_immed(s)
 431  register struct op *Perl_op asm(stringify(OP_IN_REGISTER));
 432  #  endif
 433  #endif
 434  
 435  /* gcc (-ansi) -pedantic doesn't allow gcc statement expressions,
 436   * g++ allows them but seems to have problems with them
 437   * (insane errors ensue). */
 438  #if defined(PERL_GCC_PEDANTIC) || (defined(__GNUC__) && defined(__cplusplus))
 439  #  ifndef PERL_GCC_BRACE_GROUPS_FORBIDDEN
 440  #    define PERL_GCC_BRACE_GROUPS_FORBIDDEN
 441  #  endif
 442  #endif
 443  
 444  #if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) && !defined(__cplusplus)
 445  #  ifndef PERL_USE_GCC_BRACE_GROUPS
 446  #    define PERL_USE_GCC_BRACE_GROUPS
 447  #  endif
 448  #endif
 449  
 450  /*
 451   * STMT_START { statements; } STMT_END;
 452   * can be used as a single statement, as in
 453   * if (x) STMT_START { ... } STMT_END; else ...
 454   *
 455   * Trying to select a version that gives no warnings...
 456   */
 457  #if !(defined(STMT_START) && defined(STMT_END))
 458  # ifdef PERL_USE_GCC_BRACE_GROUPS
 459  #   define STMT_START    (void)(    /* gcc supports "({ STATEMENTS; })" */
 460  #   define STMT_END    )
 461  # else
 462     /* Now which other defined()s do we need here ??? */
 463  #  if (VOIDFLAGS) && (defined(sun) || defined(__sun__)) && !defined(__GNUC__)
 464  #   define STMT_START    if (1)
 465  #   define STMT_END    else (void)0
 466  #  else
 467  #   define STMT_START    do
 468  #   define STMT_END    while (0)
 469  #  endif
 470  # endif
 471  #endif
 472  
 473  #define WITH_THX(s) STMT_START { dTHX; s; } STMT_END
 474  #define WITH_THR(s) WITH_THX(s)
 475  
 476  #ifndef BYTEORDER  /* Should never happen -- byteorder is in config.h */
 477  #   define BYTEORDER 0x1234
 478  #endif
 479  
 480  /* Overall memory policy? */
 481  #ifndef CONSERVATIVE
 482  #   define LIBERAL 1
 483  #endif
 484  
 485  #if 'A' == 65 && 'I' == 73 && 'J' == 74 && 'Z' == 90
 486  #define ASCIIish
 487  #else
 488  #undef  ASCIIish
 489  #endif
 490  
 491  /*
 492   * The following contortions are brought to you on behalf of all the
 493   * standards, semi-standards, de facto standards, not-so-de-facto standards
 494   * of the world, as well as all the other botches anyone ever thought of.
 495   * The basic theory is that if we work hard enough here, the rest of the
 496   * code can be a lot prettier.  Well, so much for theory.  Sorry, Henry...
 497   */
 498  
 499  /* define this once if either system, instead of cluttering up the src */
 500  #if defined(MSDOS) || defined(atarist) || defined(WIN32) || defined(NETWARE)
 501  #define DOSISH 1
 502  #endif
 503  
 504  #if defined(__STDC__) || defined(_AIX) || defined(__stdc__) || defined(__cplusplus) || defined(EPOC) || defined(NETWARE) || defined(__SYMBIAN32__)
 505  # define STANDARD_C 1
 506  #endif
 507  
 508  #if defined(__cplusplus) || defined(WIN32) || defined(__sgi) || defined(__EMX__) || defined(__DGUX) || defined(EPOC) || defined(__QNX__) || defined(NETWARE) || defined(PERL_MICRO)
 509  # define DONT_DECLARE_STD 1
 510  #endif
 511  
 512  #if defined(HASVOLATILE) || defined(STANDARD_C)
 513  #   ifdef __cplusplus
 514  #    define VOL        /* to temporarily suppress warnings */
 515  #   else
 516  #    define VOL volatile
 517  #   endif
 518  #else
 519  #   define VOL
 520  #endif
 521  
 522  #define TAINT        (PL_tainted = TRUE)
 523  #define TAINT_NOT    (PL_tainted = FALSE)
 524  #define TAINT_IF(c)    if (c) { PL_tainted = TRUE; }
 525  #define TAINT_ENV()    if (PL_tainting) { taint_env(); }
 526  #define TAINT_PROPER(s)    if (PL_tainting) { taint_proper(NULL, s); }
 527  
 528  /* XXX All process group stuff is handled in pp_sys.c.  Should these
 529     defines move there?  If so, I could simplify this a lot. --AD  9/96.
 530  */
 531  /* Process group stuff changed from traditional BSD to POSIX.
 532     perlfunc.pod documents the traditional BSD-style syntax, so we'll
 533     try to preserve that, if possible.
 534  */
 535  #ifdef HAS_SETPGID
 536  #  define BSD_SETPGRP(pid, pgrp)    setpgid((pid), (pgrp))
 537  #else
 538  #  if defined(HAS_SETPGRP) && defined(USE_BSD_SETPGRP)
 539  #    define BSD_SETPGRP(pid, pgrp)    setpgrp((pid), (pgrp))
 540  #  else
 541  #    ifdef HAS_SETPGRP2  /* DG/UX */
 542  #      define BSD_SETPGRP(pid, pgrp)    setpgrp2((pid), (pgrp))
 543  #    endif
 544  #  endif
 545  #endif
 546  #if defined(BSD_SETPGRP) && !defined(HAS_SETPGRP)
 547  #  define HAS_SETPGRP  /* Well, effectively it does . . . */
 548  #endif
 549  
 550  /* getpgid isn't POSIX, but at least Solaris and Linux have it, and it makes
 551      our life easier :-) so we'll try it.
 552  */
 553  #ifdef HAS_GETPGID
 554  #  define BSD_GETPGRP(pid)        getpgid((pid))
 555  #else
 556  #  if defined(HAS_GETPGRP) && defined(USE_BSD_GETPGRP)
 557  #    define BSD_GETPGRP(pid)        getpgrp((pid))
 558  #  else
 559  #    ifdef HAS_GETPGRP2  /* DG/UX */
 560  #      define BSD_GETPGRP(pid)        getpgrp2((pid))
 561  #    endif
 562  #  endif
 563  #endif
 564  #if defined(BSD_GETPGRP) && !defined(HAS_GETPGRP)
 565  #  define HAS_GETPGRP  /* Well, effectively it does . . . */
 566  #endif
 567  
 568  /* These are not exact synonyms, since setpgrp() and getpgrp() may
 569     have different behaviors, but perl.h used to define USE_BSDPGRP
 570     (prior to 5.003_05) so some extension might depend on it.
 571  */
 572  #if defined(USE_BSD_SETPGRP) || defined(USE_BSD_GETPGRP)
 573  #  ifndef USE_BSDPGRP
 574  #    define USE_BSDPGRP
 575  #  endif
 576  #endif
 577  
 578  /* HP-UX 10.X CMA (Common Multithreaded Architecure) insists that
 579     pthread.h must be included before all other header files.
 580  */
 581  #if defined(USE_ITHREADS) && defined(PTHREAD_H_FIRST) && defined(I_PTHREAD)
 582  #  include <pthread.h>
 583  #endif
 584  
 585  #ifndef _TYPES_        /* If types.h defines this it's easy. */
 586  #   ifndef major        /* Does everyone's types.h define this? */
 587  #    include <sys/types.h>
 588  #   endif
 589  #endif
 590  
 591  #ifdef __cplusplus
 592  #  ifndef I_STDARG
 593  #    define I_STDARG 1
 594  #  endif
 595  #endif
 596  
 597  #ifdef I_STDARG
 598  #  include <stdarg.h>
 599  #else
 600  #  ifdef I_VARARGS
 601  #    include <varargs.h>
 602  #  endif
 603  #endif
 604  
 605  #ifdef USE_NEXT_CTYPE
 606  
 607  #if NX_CURRENT_COMPILER_RELEASE >= 500
 608  #  include <bsd/ctypes.h>
 609  #else
 610  #  if NX_CURRENT_COMPILER_RELEASE >= 400
 611  #    include <objc/NXCType.h>
 612  #  else /*  NX_CURRENT_COMPILER_RELEASE < 400 */
 613  #    include <appkit/NXCType.h>
 614  #  endif /*  NX_CURRENT_COMPILER_RELEASE >= 400 */
 615  #endif /*  NX_CURRENT_COMPILER_RELEASE >= 500 */
 616  
 617  #else /* !USE_NEXT_CTYPE */
 618  #include <ctype.h>
 619  #endif /* USE_NEXT_CTYPE */
 620  
 621  #ifdef METHOD     /* Defined by OSF/1 v3.0 by ctype.h */
 622  #undef METHOD
 623  #endif
 624  
 625  #ifdef PERL_MICRO
 626  #   define NO_LOCALE
 627  #endif
 628  
 629  #ifdef I_LOCALE
 630  #   include <locale.h>
 631  #endif
 632  
 633  #if !defined(NO_LOCALE) && defined(HAS_SETLOCALE)
 634  #   define USE_LOCALE
 635  #   if !defined(NO_LOCALE_COLLATE) && defined(LC_COLLATE) \
 636         && defined(HAS_STRXFRM)
 637  #    define USE_LOCALE_COLLATE
 638  #   endif
 639  #   if !defined(NO_LOCALE_CTYPE) && defined(LC_CTYPE)
 640  #    define USE_LOCALE_CTYPE
 641  #   endif
 642  #   if !defined(NO_LOCALE_NUMERIC) && defined(LC_NUMERIC)
 643  #    define USE_LOCALE_NUMERIC
 644  #   endif
 645  #endif /* !NO_LOCALE && HAS_SETLOCALE */
 646  
 647  #include <setjmp.h>
 648  
 649  #ifdef I_SYS_PARAM
 650  #   ifdef PARAM_NEEDS_TYPES
 651  #    include <sys/types.h>
 652  #   endif
 653  #   include <sys/param.h>
 654  #endif
 655  
 656  /* Use all the "standard" definitions? */
 657  #if defined(STANDARD_C) && defined(I_STDLIB)
 658  #   include <stdlib.h>
 659  #endif
 660  
 661  /* If this causes problems, set i_unistd=undef in the hint file.  */
 662  #ifdef I_UNISTD
 663  #   include <unistd.h>
 664  #endif
 665  
 666  #ifdef __SYMBIAN32__
 667  #   undef _SC_ARG_MAX /* Symbian has _SC_ARG_MAX but no sysconf() */
 668  #endif
 669  
 670  #if defined(HAS_SYSCALL) && !defined(HAS_SYSCALL_PROTO) && !defined(PERL_MICRO)
 671  EXTERN_C int syscall(int, ...);
 672  #endif
 673  
 674  #if defined(HAS_USLEEP) && !defined(HAS_USLEEP_PROTO) && !defined(PERL_MICRO)
 675  EXTERN_C int usleep(unsigned int);
 676  #endif
 677  
 678  /* Funky places that do not have socket stuff. */
 679  #if defined(__LIBCATAMOUNT__)
 680  #  define MYSWAP
 681  #endif
 682  
 683  #ifdef PERL_MICRO /* Last chance to export Perl_my_swap */
 684  #  define MYSWAP
 685  #endif
 686  
 687  #ifdef PERL_CORE
 688  
 689  /* macros for correct constant construction */
 690  # if INTSIZE >= 2
 691  #  define U16_CONST(x) ((U16)x##U)
 692  # else
 693  #  define U16_CONST(x) ((U16)x##UL)
 694  # endif
 695  
 696  # if INTSIZE >= 4
 697  #  define U32_CONST(x) ((U32)x##U)
 698  # else
 699  #  define U32_CONST(x) ((U32)x##UL)
 700  # endif
 701  
 702  # ifdef HAS_QUAD
 703  #  if INTSIZE >= 8
 704  #   define U64_CONST(x) ((U64)x##U)
 705  #  elif LONGSIZE >= 8
 706  #   define U64_CONST(x) ((U64)x##UL)
 707  #  elif QUADKIND == QUAD_IS_LONG_LONG
 708  #   define U64_CONST(x) ((U64)x##ULL)
 709  #  else /* best guess we can make */
 710  #   define U64_CONST(x) ((U64)x##UL)
 711  #  endif
 712  # endif
 713  
 714  /* byte-swapping functions for big-/little-endian conversion */
 715  # define _swab_16_(x) ((U16)( \
 716           (((U16)(x) & U16_CONST(0x00ff)) << 8) | \
 717           (((U16)(x) & U16_CONST(0xff00)) >> 8) ))
 718  
 719  # define _swab_32_(x) ((U32)( \
 720           (((U32)(x) & U32_CONST(0x000000ff)) << 24) | \
 721           (((U32)(x) & U32_CONST(0x0000ff00)) <<  8) | \
 722           (((U32)(x) & U32_CONST(0x00ff0000)) >>  8) | \
 723           (((U32)(x) & U32_CONST(0xff000000)) >> 24) ))
 724  
 725  # ifdef HAS_QUAD
 726  #  define _swab_64_(x) ((U64)( \
 727            (((U64)(x) & U64_CONST(0x00000000000000ff)) << 56) | \
 728            (((U64)(x) & U64_CONST(0x000000000000ff00)) << 40) | \
 729            (((U64)(x) & U64_CONST(0x0000000000ff0000)) << 24) | \
 730            (((U64)(x) & U64_CONST(0x00000000ff000000)) <<  8) | \
 731            (((U64)(x) & U64_CONST(0x000000ff00000000)) >>  8) | \
 732            (((U64)(x) & U64_CONST(0x0000ff0000000000)) >> 24) | \
 733            (((U64)(x) & U64_CONST(0x00ff000000000000)) >> 40) | \
 734            (((U64)(x) & U64_CONST(0xff00000000000000)) >> 56) ))
 735  # endif
 736  
 737  /*----------------------------------------------------------------------------*/
 738  # if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678  /*     little-endian     */
 739  /*----------------------------------------------------------------------------*/
 740  #  define my_htole16(x)        (x)
 741  #  define my_letoh16(x)        (x)
 742  #  define my_htole32(x)        (x)
 743  #  define my_letoh32(x)        (x)
 744  #  define my_htobe16(x)        _swab_16_(x)
 745  #  define my_betoh16(x)        _swab_16_(x)
 746  #  define my_htobe32(x)        _swab_32_(x)
 747  #  define my_betoh32(x)        _swab_32_(x)
 748  #  ifdef HAS_QUAD
 749  #   define my_htole64(x)    (x)
 750  #   define my_letoh64(x)    (x)
 751  #   define my_htobe64(x)    _swab_64_(x)
 752  #   define my_betoh64(x)    _swab_64_(x)
 753  #  endif
 754  #  define my_htoles(x)        (x)
 755  #  define my_letohs(x)        (x)
 756  #  define my_htolei(x)        (x)
 757  #  define my_letohi(x)        (x)
 758  #  define my_htolel(x)        (x)
 759  #  define my_letohl(x)        (x)
 760  #  if SHORTSIZE == 1
 761  #   define my_htobes(x)        (x)
 762  #   define my_betohs(x)        (x)
 763  #  elif SHORTSIZE == 2
 764  #   define my_htobes(x)        _swab_16_(x)
 765  #   define my_betohs(x)        _swab_16_(x)
 766  #  elif SHORTSIZE == 4
 767  #   define my_htobes(x)        _swab_32_(x)
 768  #   define my_betohs(x)        _swab_32_(x)
 769  #  elif SHORTSIZE == 8
 770  #   define my_htobes(x)        _swab_64_(x)
 771  #   define my_betohs(x)        _swab_64_(x)
 772  #  else
 773  #   define PERL_NEED_MY_HTOBES
 774  #   define PERL_NEED_MY_BETOHS
 775  #  endif
 776  #  if INTSIZE == 1
 777  #   define my_htobei(x)        (x)
 778  #   define my_betohi(x)        (x)
 779  #  elif INTSIZE == 2
 780  #   define my_htobei(x)        _swab_16_(x)
 781  #   define my_betohi(x)        _swab_16_(x)
 782  #  elif INTSIZE == 4
 783  #   define my_htobei(x)        _swab_32_(x)
 784  #   define my_betohi(x)        _swab_32_(x)
 785  #  elif INTSIZE == 8
 786  #   define my_htobei(x)        _swab_64_(x)
 787  #   define my_betohi(x)        _swab_64_(x)
 788  #  else
 789  #   define PERL_NEED_MY_HTOBEI
 790  #   define PERL_NEED_MY_BETOHI
 791  #  endif
 792  #  if LONGSIZE == 1
 793  #   define my_htobel(x)        (x)
 794  #   define my_betohl(x)        (x)
 795  #  elif LONGSIZE == 2
 796  #   define my_htobel(x)        _swab_16_(x)
 797  #   define my_betohl(x)        _swab_16_(x)
 798  #  elif LONGSIZE == 4
 799  #   define my_htobel(x)        _swab_32_(x)
 800  #   define my_betohl(x)        _swab_32_(x)
 801  #  elif LONGSIZE == 8
 802  #   define my_htobel(x)        _swab_64_(x)
 803  #   define my_betohl(x)        _swab_64_(x)
 804  #  else
 805  #   define PERL_NEED_MY_HTOBEL
 806  #   define PERL_NEED_MY_BETOHL
 807  #  endif
 808  #  define my_htolen(p,n)    NOOP
 809  #  define my_letohn(p,n)    NOOP
 810  #  define my_htoben(p,n)    my_swabn(p,n)
 811  #  define my_betohn(p,n)    my_swabn(p,n)
 812  /*----------------------------------------------------------------------------*/
 813  # elif BYTEORDER == 0x4321 || BYTEORDER == 0x87654321  /*     big-endian      */
 814  /*----------------------------------------------------------------------------*/
 815  #  define my_htobe16(x)        (x)
 816  #  define my_betoh16(x)        (x)
 817  #  define my_htobe32(x)        (x)
 818  #  define my_betoh32(x)        (x)
 819  #  define my_htole16(x)        _swab_16_(x)
 820  #  define my_letoh16(x)        _swab_16_(x)
 821  #  define my_htole32(x)        _swab_32_(x)
 822  #  define my_letoh32(x)        _swab_32_(x)
 823  #  ifdef HAS_QUAD
 824  #   define my_htobe64(x)    (x)
 825  #   define my_betoh64(x)    (x)
 826  #   define my_htole64(x)    _swab_64_(x)
 827  #   define my_letoh64(x)    _swab_64_(x)
 828  #  endif
 829  #  define my_htobes(x)        (x)
 830  #  define my_betohs(x)        (x)
 831  #  define my_htobei(x)        (x)
 832  #  define my_betohi(x)        (x)
 833  #  define my_htobel(x)        (x)
 834  #  define my_betohl(x)        (x)
 835  #  if SHORTSIZE == 1
 836  #   define my_htoles(x)        (x)
 837  #   define my_letohs(x)        (x)
 838  #  elif SHORTSIZE == 2
 839  #   define my_htoles(x)        _swab_16_(x)
 840  #   define my_letohs(x)        _swab_16_(x)
 841  #  elif SHORTSIZE == 4
 842  #   define my_htoles(x)        _swab_32_(x)
 843  #   define my_letohs(x)        _swab_32_(x)
 844  #  elif SHORTSIZE == 8
 845  #   define my_htoles(x)        _swab_64_(x)
 846  #   define my_letohs(x)        _swab_64_(x)
 847  #  else
 848  #   define PERL_NEED_MY_HTOLES
 849  #   define PERL_NEED_MY_LETOHS
 850  #  endif
 851  #  if INTSIZE == 1
 852  #   define my_htolei(x)        (x)
 853  #   define my_letohi(x)        (x)
 854  #  elif INTSIZE == 2
 855  #   define my_htolei(x)        _swab_16_(x)
 856  #   define my_letohi(x)        _swab_16_(x)
 857  #  elif INTSIZE == 4
 858  #   define my_htolei(x)        _swab_32_(x)
 859  #   define my_letohi(x)        _swab_32_(x)
 860  #  elif INTSIZE == 8
 861  #   define my_htolei(x)        _swab_64_(x)
 862  #   define my_letohi(x)        _swab_64_(x)
 863  #  else
 864  #   define PERL_NEED_MY_HTOLEI
 865  #   define PERL_NEED_MY_LETOHI
 866  #  endif
 867  #  if LONGSIZE == 1
 868  #   define my_htolel(x)        (x)
 869  #   define my_letohl(x)        (x)
 870  #  elif LONGSIZE == 2
 871  #   define my_htolel(x)        _swab_16_(x)
 872  #   define my_letohl(x)        _swab_16_(x)
 873  #  elif LONGSIZE == 4
 874  #   define my_htolel(x)        _swab_32_(x)
 875  #   define my_letohl(x)        _swab_32_(x)
 876  #  elif LONGSIZE == 8
 877  #   define my_htolel(x)        _swab_64_(x)
 878  #   define my_letohl(x)        _swab_64_(x)
 879  #  else
 880  #   define PERL_NEED_MY_HTOLEL
 881  #   define PERL_NEED_MY_LETOHL
 882  #  endif
 883  #  define my_htolen(p,n)    my_swabn(p,n)
 884  #  define my_letohn(p,n)    my_swabn(p,n)
 885  #  define my_htoben(p,n)    NOOP
 886  #  define my_betohn(p,n)    NOOP
 887  /*----------------------------------------------------------------------------*/
 888  # else /*                       all other byte-orders                         */
 889  /*----------------------------------------------------------------------------*/
 890  #  define PERL_NEED_MY_HTOLE16
 891  #  define PERL_NEED_MY_LETOH16
 892  #  define PERL_NEED_MY_HTOBE16
 893  #  define PERL_NEED_MY_BETOH16
 894  #  define PERL_NEED_MY_HTOLE32
 895  #  define PERL_NEED_MY_LETOH32
 896  #  define PERL_NEED_MY_HTOBE32
 897  #  define PERL_NEED_MY_BETOH32
 898  #  ifdef HAS_QUAD
 899  #   define PERL_NEED_MY_HTOLE64
 900  #   define PERL_NEED_MY_LETOH64
 901  #   define PERL_NEED_MY_HTOBE64
 902  #   define PERL_NEED_MY_BETOH64
 903  #  endif
 904  #  define PERL_NEED_MY_HTOLES
 905  #  define PERL_NEED_MY_LETOHS
 906  #  define PERL_NEED_MY_HTOBES
 907  #  define PERL_NEED_MY_BETOHS
 908  #  define PERL_NEED_MY_HTOLEI
 909  #  define PERL_NEED_MY_LETOHI
 910  #  define PERL_NEED_MY_HTOBEI
 911  #  define PERL_NEED_MY_BETOHI
 912  #  define PERL_NEED_MY_HTOLEL
 913  #  define PERL_NEED_MY_LETOHL
 914  #  define PERL_NEED_MY_HTOBEL
 915  #  define PERL_NEED_MY_BETOHL
 916  /*----------------------------------------------------------------------------*/
 917  # endif /*                     end of byte-order macros                       */
 918  /*----------------------------------------------------------------------------*/
 919  
 920  /* The old value was hard coded at 1008. (4096-16) seems to be a bit faster,
 921     at least on FreeBSD.  YMMV, so experiment.  */
 922  #ifndef PERL_ARENA_SIZE
 923  #define PERL_ARENA_SIZE 4080
 924  #endif
 925  
 926  #endif /* PERL_CORE */
 927  
 928  /* We no longer default to creating a new SV for GvSV.
 929     Do this before embed.  */
 930  #ifndef PERL_CREATE_GVSV
 931  #  ifndef PERL_DONT_CREATE_GVSV
 932  #    define PERL_DONT_CREATE_GVSV
 933  #  endif
 934  #endif
 935  
 936  #if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME)
 937  #define PERL_USES_PL_PIDSTATUS
 938  #endif
 939  
 940  #if !defined(OS2) && !defined(WIN32) && !defined(DJGPP) && !defined(EPOC) && !defined(__SYMBIAN32__) && !defined(MACOS_TRADITIONAL)
 941  #define PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
 942  #endif
 943  
 944  /* Cannot include embed.h here on Win32 as win32.h has not 
 945     yet been included and defines some config variables e.g. HAVE_INTERP_INTERN
 946   */
 947  #if !defined(PERL_FOR_X2P) && !(defined(WIN32)||defined(VMS))
 948  #  include "embed.h"
 949  #  ifndef PERL_MAD
 950  #    undef op_getmad
 951  #    define op_getmad(arg,pegop,slot) NOOP
 952  #  endif
 953  #endif
 954  
 955  #define MEM_SIZE Size_t
 956  
 957  /* Round all values passed to malloc up, by default to a multiple of
 958     sizeof(size_t)
 959  */
 960  #ifndef PERL_STRLEN_ROUNDUP_QUANTUM
 961  #define PERL_STRLEN_ROUNDUP_QUANTUM Size_t_size
 962  #endif
 963  
 964  #if defined(STANDARD_C) && defined(I_STDDEF)
 965  #   include <stddef.h>
 966  #   define STRUCT_OFFSET(s,m)  offsetof(s,m)
 967  #else
 968  #   define STRUCT_OFFSET(s,m)  (Size_t)(&(((s *)0)->m))
 969  #endif
 970  
 971  #ifndef __SYMBIAN32__
 972  #  if defined(I_STRING) || defined(__cplusplus)
 973  #     include <string.h>
 974  #  else
 975  #     include <strings.h>
 976  #  endif
 977  #endif
 978  
 979  /* This comes after <stdlib.h> so we don't try to change the standard
 980   * library prototypes; we'll use our own in proto.h instead. */
 981  
 982  #ifdef MYMALLOC
 983  #  ifdef PERL_POLLUTE_MALLOC
 984  #   ifndef PERL_EXTMALLOC_DEF
 985  #    define Perl_malloc        malloc
 986  #    define Perl_calloc        calloc
 987  #    define Perl_realloc    realloc
 988  #    define Perl_mfree        free
 989  #   endif
 990  #  else
 991  #    define EMBEDMYMALLOC    /* for compatibility */
 992  #  endif
 993  
 994  #  define safemalloc  Perl_malloc
 995  #  define safecalloc  Perl_calloc
 996  #  define saferealloc Perl_realloc
 997  #  define safefree    Perl_mfree
 998  #  define CHECK_MALLOC_TOO_LATE_FOR_(code)    STMT_START {        \
 999      if (!PL_tainting && MallocCfg_ptr[MallocCfg_cfg_env_read])    \
1000          code;                            \
1001      } STMT_END
1002  #  define CHECK_MALLOC_TOO_LATE_FOR(ch)                \
1003      CHECK_MALLOC_TOO_LATE_FOR_(MALLOC_TOO_LATE_FOR(ch))
1004  #  define panic_write2(s)        write(2, s, strlen(s))
1005  #  define CHECK_MALLOC_TAINT(newval)                \
1006      CHECK_MALLOC_TOO_LATE_FOR_(                \
1007          if (newval) {                    \
1008            panic_write2("panic: tainting with $ENV{PERL_MALLOC_OPT}\n");\
1009            exit(1); })
1010  #  define MALLOC_CHECK_TAINT(argc,argv,env)    STMT_START {    \
1011      if (doing_taint(argc,argv,env)) {            \
1012          MallocCfg_ptr[MallocCfg_skip_cfg_env] = 1;    \
1013      }} STMT_END;
1014  #else  /* MYMALLOC */
1015  #  define safemalloc  safesysmalloc
1016  #  define safecalloc  safesyscalloc
1017  #  define saferealloc safesysrealloc
1018  #  define safefree    safesysfree
1019  #  define CHECK_MALLOC_TOO_LATE_FOR(ch)        ((void)0)
1020  #  define CHECK_MALLOC_TAINT(newval)        ((void)0)
1021  #  define MALLOC_CHECK_TAINT(argc,argv,env)
1022  #endif /* MYMALLOC */
1023  
1024  #define TOO_LATE_FOR_(ch,what)    Perl_croak(aTHX_ "\"-%c\" is on the #! line, it must also be used on the command line%s", (char)(ch), what)
1025  #define TOO_LATE_FOR(ch)    TOO_LATE_FOR_(ch, "")
1026  #define MALLOC_TOO_LATE_FOR(ch)    TOO_LATE_FOR_(ch, " with $ENV{PERL_MALLOC_OPT}")
1027  #define MALLOC_CHECK_TAINT2(argc,argv)    MALLOC_CHECK_TAINT(argc,argv,NULL)
1028  
1029  #if !defined(HAS_STRCHR) && defined(HAS_INDEX) && !defined(strchr)
1030  #define strchr index
1031  #define strrchr rindex
1032  #endif
1033  
1034  #ifdef I_MEMORY
1035  #  include <memory.h>
1036  #endif
1037  
1038  #ifdef HAS_MEMCPY
1039  #  if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
1040  #    ifndef memcpy
1041          extern char * memcpy (char*, char*, int);
1042  #    endif
1043  #  endif
1044  #else
1045  #   ifndef memcpy
1046  #    ifdef HAS_BCOPY
1047  #        define memcpy(d,s,l) bcopy(s,d,l)
1048  #    else
1049  #        define memcpy(d,s,l) my_bcopy(s,d,l)
1050  #    endif
1051  #   endif
1052  #endif /* HAS_MEMCPY */
1053  
1054  #ifdef HAS_MEMSET
1055  #  if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
1056  #    ifndef memset
1057      extern char *memset (char*, int, int);
1058  #    endif
1059  #  endif
1060  #else
1061  #  undef  memset
1062  #  define memset(d,c,l) my_memset(d,c,l)
1063  #endif /* HAS_MEMSET */
1064  
1065  #if !defined(HAS_MEMMOVE) && !defined(memmove)
1066  #   if defined(HAS_BCOPY) && defined(HAS_SAFE_BCOPY)
1067  #    define memmove(d,s,l) bcopy(s,d,l)
1068  #   else
1069  #    if defined(HAS_MEMCPY) && defined(HAS_SAFE_MEMCPY)
1070  #        define memmove(d,s,l) memcpy(d,s,l)
1071  #    else
1072  #        define memmove(d,s,l) my_bcopy(s,d,l)
1073  #    endif
1074  #   endif
1075  #endif
1076  
1077  #if defined(mips) && defined(ultrix) && !defined(__STDC__)
1078  #   undef HAS_MEMCMP
1079  #endif
1080  
1081  #if defined(HAS_MEMCMP) && defined(HAS_SANE_MEMCMP)
1082  #  if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
1083  #    ifndef memcmp
1084      extern int memcmp (char*, char*, int);
1085  #    endif
1086  #  endif
1087  #  ifdef BUGGY_MSC
1088  #    pragma function(memcmp)
1089  #  endif
1090  #else
1091  #   ifndef memcmp
1092  #    define memcmp     my_memcmp
1093  #   endif
1094  #endif /* HAS_MEMCMP && HAS_SANE_MEMCMP */
1095  
1096  #ifndef memzero
1097  #   ifdef HAS_MEMSET
1098  #    define memzero(d,l) memset(d,0,l)
1099  #   else
1100  #    ifdef HAS_BZERO
1101  #        define memzero(d,l) bzero(d,l)
1102  #    else
1103  #        define memzero(d,l) my_bzero(d,l)
1104  #    endif
1105  #   endif
1106  #endif
1107  
1108  #ifndef PERL_MICRO
1109  #ifndef memchr
1110  #   ifndef HAS_MEMCHR
1111  #       define memchr(s,c,n) ninstr((char*)(s), ((char*)(s)) + n, &(c), &(c) + 1)
1112  #   endif
1113  #endif
1114  #endif
1115  
1116  #ifndef HAS_BCMP
1117  #   ifndef bcmp
1118  #    define bcmp(s1,s2,l) memcmp(s1,s2,l)
1119  #   endif
1120  #endif /* !HAS_BCMP */
1121  
1122  #ifdef I_NETINET_IN
1123  #   include <netinet/in.h>
1124  #endif
1125  
1126  #ifdef I_ARPA_INET
1127  #   include <arpa/inet.h>
1128  #endif
1129  
1130  #if defined(SF_APPEND) && defined(USE_SFIO) && defined(I_SFIO)
1131  /* <sfio.h> defines SF_APPEND and <sys/stat.h> might define SF_APPEND
1132   * (the neo-BSD seem to do this).  */
1133  #   undef SF_APPEND
1134  #endif
1135  
1136  #ifdef I_SYS_STAT
1137  #   include <sys/stat.h>
1138  #endif
1139  
1140  /* The stat macros for Amdahl UTS, Unisoft System V/88 (and derivatives
1141     like UTekV) are broken, sometimes giving false positives.  Undefine
1142     them here and let the code below set them to proper values.
1143  
1144     The ghs macro stands for GreenHills Software C-1.8.5 which
1145     is the C compiler for sysV88 and the various derivatives.
1146     This header file bug is corrected in gcc-2.5.8 and later versions.
1147     --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94.  */
1148  
1149  #if defined(uts) || (defined(m88k) && defined(ghs))
1150  #   undef S_ISDIR
1151  #   undef S_ISCHR
1152  #   undef S_ISBLK
1153  #   undef S_ISREG
1154  #   undef S_ISFIFO
1155  #   undef S_ISLNK
1156  #endif
1157  
1158  #ifdef I_TIME
1159  #   include <time.h>
1160  #endif
1161  
1162  #ifdef I_SYS_TIME
1163  #   ifdef I_SYS_TIME_KERNEL
1164  #    define KERNEL
1165  #   endif
1166  #   include <sys/time.h>
1167  #   ifdef I_SYS_TIME_KERNEL
1168  #    undef KERNEL
1169  #   endif
1170  #endif
1171  
1172  #if defined(HAS_TIMES) && defined(I_SYS_TIMES)
1173  #    include <sys/times.h>
1174  #endif
1175  
1176  #if defined(HAS_STRERROR) && (!defined(HAS_MKDIR) || !defined(HAS_RMDIR))
1177  #   undef HAS_STRERROR
1178  #endif
1179  
1180  #include <errno.h>
1181  
1182  #if defined(WIN32) && defined(PERL_IMPLICIT_SYS)
1183  #  define WIN32SCK_IS_STDSCK        /* don't pull in custom wsock layer */
1184  #endif
1185  
1186  /* In Tru64 use the 4.4BSD struct msghdr, not the 4.3 one.
1187   * This is important for using IPv6. 
1188   * For OSF/1 3.2, however, defining _SOCKADDR_LEN would be
1189   * a bad idea since it breaks send() and recv(). */
1190  #if defined(__osf__) && defined(__alpha) && !defined(_SOCKADDR_LEN) && !defined(DEC_OSF1_3_X)
1191  #   define _SOCKADDR_LEN
1192  #endif
1193  
1194  #if defined(HAS_SOCKET) && !defined(VMS) && !defined(WIN32) /* VMS/WIN32 handle sockets via vmsish.h/win32.h */
1195  # include <sys/socket.h>
1196  # if defined(USE_SOCKS) && defined(I_SOCKS)
1197  #   if !defined(INCLUDE_PROTOTYPES)
1198  #       define INCLUDE_PROTOTYPES /* for <socks.h> */
1199  #       define PERL_SOCKS_NEED_PROTOTYPES
1200  #   endif
1201  #   include <socks.h>
1202  #   ifdef PERL_SOCKS_NEED_PROTOTYPES /* keep cpp space clean */
1203  #       undef INCLUDE_PROTOTYPES
1204  #       undef PERL_SOCKS_NEED_PROTOTYPES
1205  #   endif
1206  # endif
1207  # ifdef I_NETDB
1208  #  ifdef NETWARE
1209  #   include<stdio.h>
1210  #  endif
1211  #  include <netdb.h>
1212  # endif
1213  # ifndef ENOTSOCK
1214  #  ifdef I_NET_ERRNO
1215  #   include <net/errno.h>
1216  #  endif
1217  # endif
1218  #endif
1219  
1220  /* sockatmark() is so new (2001) that many places might have it hidden
1221   * behind some -D_BLAH_BLAH_SOURCE guard.  The __THROW magic is required
1222   * e.g. in Gentoo, see http://bugs.gentoo.org/show_bug.cgi?id=12605 */
1223  #if defined(HAS_SOCKATMARK) && !defined(HAS_SOCKATMARK_PROTO)
1224  # if defined(__THROW) && defined(__GLIBC__)
1225  int sockatmark(int) __THROW;
1226  # else
1227  int sockatmark(int);
1228  # endif
1229  #endif
1230  
1231  #if defined(__osf__) && defined(__cplusplus) && !defined(_XOPEN_SOURCE_EXTENDED) /* Tru64 "cxx" (C++), see hints/dec_osf.sh for why the _XOPEN_SOURCE_EXTENDED cannot be defined. */
1232  EXTERN_C int fchdir(int);
1233  EXTERN_C int flock(int, int);
1234  EXTERN_C int fseeko(FILE *, off_t, int);
1235  EXTERN_C off_t ftello(FILE *);
1236  #endif
1237  
1238  #if defined(__SUNPRO_CC) /* SUNWspro CC (C++) */
1239  EXTERN_C char *crypt(const char *, const char *);
1240  EXTERN_C char **environ;
1241  #endif
1242  
1243  #if defined(__cplusplus)
1244  #  if defined(__OpenBSD__) || defined(__FreeBSD__) || defined(__NetBSD__)
1245  EXTERN_C char **environ;
1246  #  elif defined(__CYGWIN__)
1247  EXTERN_C char *crypt(const char *, const char *);
1248  #endif
1249  #endif
1250  
1251  #ifdef SETERRNO
1252  # undef SETERRNO  /* SOCKS might have defined this */
1253  #endif
1254  
1255  #ifdef VMS
1256  #   define SETERRNO(errcode,vmserrcode) \
1257      STMT_START {            \
1258          set_errno(errcode);        \
1259          set_vaxc_errno(vmserrcode);    \
1260      } STMT_END
1261  #   define LIB_INVARG         LIB$_INVARG
1262  #   define RMS_DIR            RMS$_DIR
1263  #   define RMS_FAC            RMS$_FAC
1264  #   define RMS_FEX            RMS$_FEX
1265  #   define RMS_FNF            RMS$_FNF
1266  #   define RMS_IFI            RMS$_IFI
1267  #   define RMS_ISI            RMS$_ISI
1268  #   define RMS_PRV            RMS$_PRV
1269  #   define SS_ACCVIO          SS$_ACCVIO
1270  #   define SS_DEVOFFLINE    SS$_DEVOFFLINE
1271  #   define SS_IVCHAN          SS$_IVCHAN
1272  #   define SS_NORMAL          SS$_NORMAL
1273  #else
1274  #   define SETERRNO(errcode,vmserrcode) (errno = (errcode))
1275  #   define LIB_INVARG         0
1276  #   define RMS_DIR            0
1277  #   define RMS_FAC            0
1278  #   define RMS_FEX            0
1279  #   define RMS_FNF            0
1280  #   define RMS_IFI            0
1281  #   define RMS_ISI            0
1282  #   define RMS_PRV            0
1283  #   define SS_ACCVIO          0
1284  #   define SS_DEVOFFLINE    0
1285  #   define SS_IVCHAN          0
1286  #   define SS_NORMAL          0
1287  #endif
1288  
1289  #define ERRSV GvSV(PL_errgv)
1290  /* FIXME? Change the assignments to PL_defgv to instantiate GvSV?  */
1291  #define DEFSV GvSVn(PL_defgv)
1292  #define SAVE_DEFSV SAVESPTR(GvSV(PL_defgv))
1293  
1294  #define ERRHV GvHV(PL_errgv)    /* XXX unused, here for compatibility */
1295  
1296  #ifndef errno
1297      extern int errno;     /* ANSI allows errno to be an lvalue expr.
1298                     * For example in multithreaded environments
1299                     * something like this might happen:
1300                     * extern int *_errno(void);
1301                     * #define errno (*_errno()) */
1302  #endif
1303  
1304  #ifdef HAS_STRERROR
1305  #       ifdef VMS
1306      char *strerror (int,...);
1307  #       else
1308  #ifndef DONT_DECLARE_STD
1309      char *strerror (int);
1310  #endif
1311  #       endif
1312  #       ifndef Strerror
1313  #           define Strerror strerror
1314  #       endif
1315  #else
1316  #    ifdef HAS_SYS_ERRLIST
1317      extern int sys_nerr;
1318      extern char *sys_errlist[];
1319  #       ifndef Strerror
1320  #           define Strerror(e) \
1321          ((e) < 0 || (e) >= sys_nerr ? "(unknown)" : sys_errlist[e])
1322  #       endif
1323  #   endif
1324  #endif
1325  
1326  #ifdef I_SYS_IOCTL
1327  #   ifndef _IOCTL_
1328  #    include <sys/ioctl.h>
1329  #   endif
1330  #endif
1331  
1332  #if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
1333  #   ifdef HAS_SOCKETPAIR
1334  #    undef HAS_SOCKETPAIR
1335  #   endif
1336  #   ifdef I_NDBM
1337  #    undef I_NDBM
1338  #   endif
1339  #endif
1340  
1341  #ifndef HAS_SOCKETPAIR
1342  #   ifdef HAS_SOCKET
1343  #    define socketpair Perl_my_socketpair
1344  #   endif
1345  #endif
1346  
1347  #if INTSIZE == 2
1348  #   define htoni htons
1349  #   define ntohi ntohs
1350  #else
1351  #   define htoni htonl
1352  #   define ntohi ntohl
1353  #endif
1354  
1355  /* Configure already sets Direntry_t */
1356  #if defined(I_DIRENT)
1357  #   include <dirent.h>
1358      /* NeXT needs dirent + sys/dir.h */
1359  #   if  defined(I_SYS_DIR) && (defined(NeXT) || defined(__NeXT__))
1360  #    include <sys/dir.h>
1361  #   endif
1362  #else
1363  #   ifdef I_SYS_NDIR
1364  #    include <sys/ndir.h>
1365  #   else
1366  #    ifdef I_SYS_DIR
1367  #        ifdef hp9000s500
1368  #        include <ndir.h>    /* may be wrong in the future */
1369  #        else
1370  #        include <sys/dir.h>
1371  #        endif
1372  #    endif
1373  #   endif
1374  #endif
1375  
1376  #ifdef PERL_MICRO
1377  #   ifndef DIR
1378  #      define DIR void
1379  #   endif
1380  #endif
1381  
1382  #ifdef FPUTS_BOTCH
1383  /* work around botch in SunOS 4.0.1 and 4.0.2 */
1384  #   ifndef fputs
1385  #    define fputs(sv,fp) fprintf(fp,"%s",sv)
1386  #   endif
1387  #endif
1388  
1389  /*
1390   * The following gobbledygook brought to you on behalf of __STDC__.
1391   * (I could just use #ifndef __STDC__, but this is more bulletproof
1392   * in the face of half-implementations.)
1393   */
1394  
1395  #if defined(I_SYSMODE) && !defined(PERL_MICRO)
1396  #include <sys/mode.h>
1397  #endif
1398  
1399  #ifndef S_IFMT
1400  #   ifdef _S_IFMT
1401  #    define S_IFMT _S_IFMT
1402  #   else
1403  #    define S_IFMT 0170000
1404  #   endif
1405  #endif
1406  
1407  #ifndef S_ISDIR
1408  #   define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
1409  #endif
1410  
1411  #ifndef S_ISCHR
1412  #   define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
1413  #endif
1414  
1415  #ifndef S_ISBLK
1416  #   ifdef S_IFBLK
1417  #    define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
1418  #   else
1419  #    define S_ISBLK(m) (0)
1420  #   endif
1421  #endif
1422  
1423  #ifndef S_ISREG
1424  #   define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
1425  #endif
1426  
1427  #ifndef S_ISFIFO
1428  #   ifdef S_IFIFO
1429  #    define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
1430  #   else
1431  #    define S_ISFIFO(m) (0)
1432  #   endif
1433  #endif
1434  
1435  #ifndef S_ISLNK
1436  #   ifdef _S_ISLNK
1437  #    define S_ISLNK(m) _S_ISLNK(m)
1438  #   else
1439  #    ifdef _S_IFLNK
1440  #        define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
1441  #    else
1442  #        ifdef S_IFLNK
1443  #        define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
1444  #        else
1445  #        define S_ISLNK(m) (0)
1446  #        endif
1447  #    endif
1448  #   endif
1449  #endif
1450  
1451  #ifndef S_ISSOCK
1452  #   ifdef _S_ISSOCK
1453  #    define S_ISSOCK(m) _S_ISSOCK(m)
1454  #   else
1455  #    ifdef _S_IFSOCK
1456  #        define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
1457  #    else
1458  #        ifdef S_IFSOCK
1459  #        define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
1460  #        else
1461  #        define S_ISSOCK(m) (0)
1462  #        endif
1463  #    endif
1464  #   endif
1465  #endif
1466  
1467  #ifndef S_IRUSR
1468  #   ifdef S_IREAD
1469  #    define S_IRUSR S_IREAD
1470  #    define S_IWUSR S_IWRITE
1471  #    define S_IXUSR S_IEXEC
1472  #   else
1473  #    define S_IRUSR 0400
1474  #    define S_IWUSR 0200
1475  #    define S_IXUSR 0100
1476  #   endif
1477  #endif
1478  
1479  #ifndef S_IRGRP
1480  #   ifdef S_IRUSR
1481  #       define S_IRGRP (S_IRUSR>>3)
1482  #       define S_IWGRP (S_IWUSR>>3)
1483  #       define S_IXGRP (S_IXUSR>>3)
1484  #   else
1485  #       define S_IRGRP 0040
1486  #       define S_IWGRP 0020
1487  #       define S_IXGRP 0010
1488  #   endif
1489  #endif
1490  
1491  #ifndef S_IROTH
1492  #   ifdef S_IRUSR
1493  #       define S_IROTH (S_IRUSR>>6)
1494  #       define S_IWOTH (S_IWUSR>>6)
1495  #       define S_IXOTH (S_IXUSR>>6)
1496  #   else
1497  #       define S_IROTH 0040
1498  #       define S_IWOTH 0020
1499  #       define S_IXOTH 0010
1500  #   endif
1501  #endif
1502  
1503  #ifndef S_ISUID
1504  #   define S_ISUID 04000
1505  #endif
1506  
1507  #ifndef S_ISGID
1508  #   define S_ISGID 02000
1509  #endif
1510  
1511  #ifndef S_IRWXU
1512  #   define S_IRWXU (S_IRUSR|S_IWUSR|S_IXUSR)
1513  #endif
1514  
1515  #ifndef S_IRWXG
1516  #   define S_IRWXG (S_IRGRP|S_IWGRP|S_IXGRP)
1517  #endif
1518  
1519  #ifndef S_IRWXO
1520  #   define S_IRWXO (S_IROTH|S_IWOTH|S_IXOTH)
1521  #endif
1522  
1523  /* BeOS 5.0 seems to define S_IREAD and S_IWRITE in <posix/fcntl.h>
1524   * which would get included through <sys/file.h >, but that is 3000
1525   * lines in the future.  --jhi */
1526  
1527  #if !defined(S_IREAD) && !defined(__BEOS__)
1528  #   define S_IREAD S_IRUSR
1529  #endif
1530  
1531  #if !defined(S_IWRITE) && !defined(__BEOS__)
1532  #   define S_IWRITE S_IWUSR
1533  #endif
1534  
1535  #ifndef S_IEXEC
1536  #   define S_IEXEC S_IXUSR
1537  #endif
1538  
1539  #ifdef ff_next
1540  #   undef ff_next
1541  #endif
1542  
1543  #if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
1544  #   define SLOPPYDIVIDE
1545  #endif
1546  
1547  #ifdef UV
1548  #undef UV
1549  #endif
1550  
1551  #ifdef    SPRINTF_E_BUG
1552  #  define sprintf UTS_sprintf_wrap
1553  #endif
1554  
1555  /* For the times when you want the return value of sprintf, and you want it
1556     to be the length. Can't have a thread variable passed in, because C89 has
1557     no varargs macros.
1558  */
1559  #ifdef SPRINTF_RETURNS_STRLEN
1560  #  define my_sprintf sprintf
1561  #else
1562  #  define my_sprintf Perl_my_sprintf
1563  #endif
1564  
1565  /*
1566   * If we have v?snprintf() and the C99 variadic macros, we can just
1567   * use just the v?snprintf().  It is nice to try to trap the buffer
1568   * overflow, however, so if we are DEBUGGING, and we cannot use the
1569   * gcc statement expressions, then use the function wrappers which try
1570   * to trap the overflow.  If we can use the gcc statement expressions,
1571   * we can try that even with the version that uses the C99 variadic
1572   * macros.
1573   */
1574  
1575  /* Note that we do not check against snprintf()/vsnprintf() returning
1576   * negative values because that is non-standard behaviour and we use
1577   * snprintf/vsnprintf only iff HAS_VSNPRINTF has been defined, and
1578   * that should be true only if the snprintf()/vsnprintf() are true
1579   * to the standard. */
1580  
1581  #if defined(HAS_SNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
1582  #  ifdef PERL_USE_GCC_BRACE_GROUPS
1583  #      define my_snprintf(buffer, len, ...) ({ int __len__ = snprintf(buffer, len, __VA_ARGS__); if ((len) > 0 && (Size_t)__len__ >= (len)) Perl_croak_nocontext("panic: snprintf buffer overflow"); __len__; })
1584  #      define PERL_MY_SNPRINTF_GUARDED
1585  #  else
1586  #    define my_snprintf(buffer, len, ...) snprintf(buffer, len, __VA_ARGS__)
1587  #  endif
1588  #else
1589  #  define my_snprintf  Perl_my_snprintf
1590  #  define PERL_MY_SNPRINTF_GUARDED
1591  #endif
1592  
1593  #if defined(HAS_VSNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC)
1594  #  ifdef PERL_USE_GCC_BRACE_GROUPS
1595  #      define my_vsnprintf(buffer, len, ...) ({ int __len__ = vsnprintf(buffer, len, __VA_ARGS__); if ((len) > 0 && (Size_t)__len__ >= (len)) Perl_croak_nocontext("panic: vsnprintf buffer overflow"); __len__; })
1596  #      define PERL_MY_VSNPRINTF_GUARDED
1597  #  else
1598  #    define my_vsnprintf(buffer, len, ...) vsnprintf(buffer, len, __VA_ARGS__)
1599  #  endif
1600  #else
1601  #  define my_vsnprintf Perl_my_vsnprintf
1602  #  define PERL_MY_VSNPRINTF_GUARDED
1603  #endif
1604  
1605  #ifdef HAS_STRLCAT
1606  #  define my_strlcat    strlcat
1607  #else
1608  #  define my_strlcat    Perl_my_strlcat
1609  #endif
1610  
1611  #ifdef HAS_STRLCPY
1612  #  define my_strlcpy    strlcpy
1613  #else
1614  #  define my_strlcpy    Perl_my_strlcpy
1615  #endif
1616  
1617  /* Configure gets this right but the UTS compiler gets it wrong.
1618     -- Hal Morris <hom00@utsglobal.com> */
1619  #ifdef UTS
1620  #  undef  UVTYPE
1621  #  define UVTYPE unsigned
1622  #endif
1623  
1624  /*
1625      The IV type is supposed to be long enough to hold any integral
1626      value or a pointer.
1627      --Andy Dougherty    August 1996
1628  */
1629  
1630  typedef IVTYPE IV;
1631  typedef UVTYPE UV;
1632  
1633  #if defined(USE_64_BIT_INT) && defined(HAS_QUAD)
1634  #  if QUADKIND == QUAD_IS_INT64_T && defined(INT64_MAX)
1635  #    define IV_MAX INT64_MAX
1636  #    define IV_MIN INT64_MIN
1637  #    define UV_MAX UINT64_MAX
1638  #    ifndef UINT64_MIN
1639  #      define UINT64_MIN 0
1640  #    endif
1641  #    define UV_MIN UINT64_MIN
1642  #  else
1643  #    define IV_MAX PERL_QUAD_MAX
1644  #    define IV_MIN PERL_QUAD_MIN
1645  #    define UV_MAX PERL_UQUAD_MAX
1646  #    define UV_MIN PERL_UQUAD_MIN
1647  #  endif
1648  #  define IV_IS_QUAD
1649  #  define UV_IS_QUAD
1650  #else
1651  #  if defined(INT32_MAX) && IVSIZE == 4
1652  #    define IV_MAX INT32_MAX
1653  #    define IV_MIN INT32_MIN
1654  #    ifndef UINT32_MAX_BROKEN /* e.g. HP-UX with gcc messes this up */
1655  #        define UV_MAX UINT32_MAX
1656  #    else
1657  #        define UV_MAX 4294967295U
1658  #    endif
1659  #    ifndef UINT32_MIN
1660  #      define UINT32_MIN 0
1661  #    endif
1662  #    define UV_MIN UINT32_MIN
1663  #  else
1664  #    define IV_MAX PERL_LONG_MAX
1665  #    define IV_MIN PERL_LONG_MIN
1666  #    define UV_MAX PERL_ULONG_MAX
1667  #    define UV_MIN PERL_ULONG_MIN
1668  #  endif
1669  #  if IVSIZE == 8
1670  #    define IV_IS_QUAD
1671  #    define UV_IS_QUAD
1672  #    ifndef HAS_QUAD
1673  #      define HAS_QUAD
1674  #    endif
1675  #  else
1676  #    undef IV_IS_QUAD
1677  #    undef UV_IS_QUAD
1678  #    undef HAS_QUAD
1679  #  endif
1680  #endif
1681  
1682  #ifndef HAS_QUAD
1683  # undef PERL_NEED_MY_HTOLE64
1684  # undef PERL_NEED_MY_LETOH64
1685  # undef PERL_NEED_MY_HTOBE64
1686  # undef PERL_NEED_MY_BETOH64
1687  #endif
1688  
1689  #if defined(uts) || defined(UTS)
1690  #    undef UV_MAX
1691  #    define UV_MAX (4294967295u)
1692  #endif
1693  
1694  #define IV_DIG (BIT_DIGITS(IVSIZE * 8))
1695  #define UV_DIG (BIT_DIGITS(UVSIZE * 8))
1696  
1697  #ifndef NO_PERL_PRESERVE_IVUV
1698  #define PERL_PRESERVE_IVUV    /* We like our integers to stay integers. */
1699  #endif
1700  
1701  /*
1702   *  The macros INT2PTR and NUM2PTR are (despite their names)
1703   *  bi-directional: they will convert int/float to or from pointers.
1704   *  However the conversion to int/float are named explicitly:
1705   *  PTR2IV, PTR2UV, PTR2NV.
1706   *
1707   *  For int conversions we do not need two casts if pointers are
1708   *  the same size as IV and UV.   Otherwise we need an explicit
1709   *  cast (PTRV) to avoid compiler warnings.
1710   */
1711  #if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE)
1712  #  define PTRV            UV
1713  #  define INT2PTR(any,d)    (any)(d)
1714  #else
1715  #  if PTRSIZE == LONGSIZE
1716  #    define PTRV        unsigned long
1717  #    define PTR2ul(p)        (unsigned long)(p)
1718  #  else
1719  #    define PTRV        unsigned
1720  #  endif
1721  #endif
1722  
1723  #ifndef INT2PTR
1724  #  define INT2PTR(any,d)    (any)(PTRV)(d)
1725  #endif
1726  
1727  #ifndef PTR2ul
1728  #  define PTR2ul(p)    INT2PTR(unsigned long,p)    
1729  #endif
1730  
1731  #define NUM2PTR(any,d)    (any)(PTRV)(d)
1732  #define PTR2IV(p)    INT2PTR(IV,p)
1733  #define PTR2UV(p)    INT2PTR(UV,p)
1734  #define PTR2NV(p)    NUM2PTR(NV,p)
1735  #define PTR2nat(p)    (PTRV)(p)    /* pointer to integer of PTRSIZE */
1736  
1737  /* According to strict ANSI C89 one cannot freely cast between
1738   * data pointers and function (code) pointers.  There are at least
1739   * two ways around this.  One (used below) is to do two casts,
1740   * first the other pointer to an (unsigned) integer, and then
1741   * the integer to the other pointer.  The other way would be
1742   * to use unions to "overlay" the pointers.  For an example of
1743   * the latter technique, see union dirpu in struct xpvio in sv.h.
1744   * The only feasible use is probably temporarily storing
1745   * function pointers in a data pointer (such as a void pointer). */
1746  
1747  #define DPTR2FPTR(t,p) ((t)PTR2nat(p))    /* data pointer to function pointer */
1748  #define FPTR2DPTR(t,p) ((t)PTR2nat(p))    /* function pointer to data pointer */
1749  
1750  #ifdef USE_LONG_DOUBLE
1751  #  if defined(HAS_LONG_DOUBLE) && LONG_DOUBLESIZE == DOUBLESIZE
1752  #      define LONG_DOUBLE_EQUALS_DOUBLE
1753  #  endif
1754  #  if !(defined(HAS_LONG_DOUBLE) && (LONG_DOUBLESIZE > DOUBLESIZE))
1755  #     undef USE_LONG_DOUBLE /* Ouch! */
1756  #  endif
1757  #endif
1758  
1759  #ifdef OVR_DBL_DIG
1760  /* Use an overridden DBL_DIG */
1761  # ifdef DBL_DIG
1762  #  undef DBL_DIG
1763  # endif
1764  # define DBL_DIG OVR_DBL_DIG
1765  #else
1766  /* The following is all to get DBL_DIG, in order to pick a nice
1767     default value for printing floating point numbers in Gconvert
1768     (see config.h). (It also has other uses, such as figuring out if
1769     a given precision of printing can be done with a double instead of
1770     a long double - Allen).
1771  */
1772  #ifdef I_LIMITS
1773  #include <limits.h>
1774  #endif
1775  #ifdef I_FLOAT
1776  #include <float.h>
1777  #endif
1778  #ifndef HAS_DBL_DIG
1779  #define DBL_DIG    15   /* A guess that works lots of places */
1780  #endif
1781  #endif
1782  
1783  #ifdef OVR_LDBL_DIG
1784  /* Use an overridden LDBL_DIG */
1785  # ifdef LDBL_DIG
1786  #  undef LDBL_DIG
1787  # endif
1788  # define LDBL_DIG OVR_LDBL_DIG
1789  #else
1790  /* The following is all to get LDBL_DIG, in order to pick a nice
1791     default value for printing floating point numbers in Gconvert.
1792     (see config.h)
1793  */
1794  # ifdef I_LIMITS
1795  #   include <limits.h>
1796  # endif
1797  # ifdef I_FLOAT
1798  #  include <float.h>
1799  # endif
1800  # ifndef HAS_LDBL_DIG
1801  #  if LONG_DOUBLESIZE == 10
1802  #   define LDBL_DIG 18 /* assume IEEE */
1803  #  else
1804  #   if LONG_DOUBLESIZE == 12
1805  #    define LDBL_DIG 18 /* gcc? */
1806  #   else
1807  #    if LONG_DOUBLESIZE == 16
1808  #     define LDBL_DIG 33 /* assume IEEE */
1809  #    else
1810  #     if LONG_DOUBLESIZE == DOUBLESIZE
1811  #      define LDBL_DIG DBL_DIG /* bummer */
1812  #     endif
1813  #    endif
1814  #   endif
1815  #  endif
1816  # endif
1817  #endif
1818  
1819  /*
1820   * This is for making sure we have a good DBL_MAX value, if possible,
1821   * either for usage as NV_MAX or for usage in figuring out if we can
1822   * fit a given long double into a double, if bug-fixing makes it
1823   * necessary to do so. - Allen <allens@cpan.org>
1824   */
1825  
1826  #ifdef I_LIMITS
1827  #  include <limits.h>
1828  #endif
1829  
1830  #ifdef I_VALUES
1831  #  if !(defined(DBL_MIN) && defined(DBL_MAX) && defined(I_LIMITS))
1832  #    include <values.h>
1833  #    if defined(MAXDOUBLE) && !defined(DBL_MAX)
1834  #      define DBL_MAX MAXDOUBLE
1835  #    endif
1836  #    if defined(MINDOUBLE) && !defined(DBL_MIN)
1837  #      define DBL_MIN MINDOUBLE
1838  #    endif
1839  #  endif
1840  #endif /* defined(I_VALUES) */
1841  
1842  typedef NVTYPE NV;
1843  
1844  #ifdef I_IEEEFP
1845  #   include <ieeefp.h>
1846  #endif
1847  
1848  #ifdef USE_LONG_DOUBLE
1849  #   ifdef I_SUNMATH
1850  #       include <sunmath.h>
1851  #   endif
1852  #   define NV_DIG LDBL_DIG
1853  #   ifdef LDBL_MANT_DIG
1854  #       define NV_MANT_DIG LDBL_MANT_DIG
1855  #   endif
1856  #   ifdef LDBL_MIN
1857  #       define NV_MIN LDBL_MIN
1858  #   endif
1859  #   ifdef LDBL_MAX
1860  #       define NV_MAX LDBL_MAX
1861  #   endif
1862  #   ifdef LDBL_MIN_10_EXP
1863  #       define NV_MIN_10_EXP LDBL_MIN_10_EXP
1864  #   endif
1865  #   ifdef LDBL_MAX_10_EXP
1866  #       define NV_MAX_10_EXP LDBL_MAX_10_EXP
1867  #   endif
1868  #   ifdef LDBL_EPSILON
1869  #       define NV_EPSILON LDBL_EPSILON
1870  #   endif
1871  #   ifdef LDBL_MAX
1872  #       define NV_MAX LDBL_MAX
1873  /* Having LDBL_MAX doesn't necessarily mean that we have LDBL_MIN... -Allen */
1874  #   else
1875  #       ifdef HUGE_VALL
1876  #           define NV_MAX HUGE_VALL
1877  #       else
1878  #           ifdef HUGE_VAL
1879  #               define NV_MAX ((NV)HUGE_VAL)
1880  #           endif
1881  #       endif
1882  #   endif
1883  #   ifdef HAS_SQRTL
1884  #       define Perl_cos cosl
1885  #       define Perl_sin sinl
1886  #       define Perl_sqrt sqrtl
1887  #       define Perl_exp expl
1888  #       define Perl_log logl
1889  #       define Perl_atan2 atan2l
1890  #       define Perl_pow powl
1891  #       define Perl_floor floorl
1892  #       define Perl_ceil ceill
1893  #       define Perl_fmod fmodl
1894  #   endif
1895  /* e.g. libsunmath doesn't have modfl and frexpl as of mid-March 2000 */
1896  #   ifdef HAS_MODFL
1897  #       define Perl_modf(x,y) modfl(x,y)
1898  /* eg glibc 2.2 series seems to provide modfl on ppc and arm, but has no
1899     prototype in <math.h> */
1900  #       ifndef HAS_MODFL_PROTO
1901  EXTERN_C long double modfl(long double, long double *);
1902  #    endif
1903  #   else
1904  #       if defined(HAS_AINTL) && defined(HAS_COPYSIGNL)
1905          extern long double Perl_my_modfl(long double x, long double *ip);
1906  #           define Perl_modf(x,y) Perl_my_modfl(x,y)
1907  #       endif
1908  #   endif
1909  #   ifdef HAS_FREXPL
1910  #       define Perl_frexp(x,y) frexpl(x,y)
1911  #   else
1912  #       if defined(HAS_ILOGBL) && defined(HAS_SCALBNL)
1913          extern long double Perl_my_frexpl(long double x, int *e);
1914  #           define Perl_frexp(x,y) Perl_my_frexpl(x,y)
1915  #       endif
1916  #   endif
1917  #   ifndef Perl_isnan
1918  #       ifdef HAS_ISNANL
1919  #           define Perl_isnan(x) isnanl(x)
1920  #       endif
1921  #   endif
1922  #   ifndef Perl_isinf
1923  #       ifdef HAS_FINITEL
1924  #           define Perl_isinf(x) !(finitel(x)||Perl_isnan(x))
1925  #       endif
1926  #   endif
1927  #else
1928  #   define NV_DIG DBL_DIG
1929  #   ifdef DBL_MANT_DIG
1930  #       define NV_MANT_DIG DBL_MANT_DIG
1931  #   endif
1932  #   ifdef DBL_MIN
1933  #       define NV_MIN DBL_MIN
1934  #   endif
1935  #   ifdef DBL_MAX
1936  #       define NV_MAX DBL_MAX
1937  #   endif
1938  #   ifdef DBL_MIN_10_EXP
1939  #       define NV_MIN_10_EXP DBL_MIN_10_EXP
1940  #   endif
1941  #   ifdef DBL_MAX_10_EXP
1942  #       define NV_MAX_10_EXP DBL_MAX_10_EXP
1943  #   endif
1944  #   ifdef DBL_EPSILON
1945  #       define NV_EPSILON DBL_EPSILON
1946  #   endif
1947  #   ifdef DBL_MAX               /* XXX Does DBL_MAX imply having DBL_MIN? */
1948  #       define NV_MAX DBL_MAX
1949  #       define NV_MIN DBL_MIN
1950  #   else
1951  #       ifdef HUGE_VAL
1952  #           define NV_MAX HUGE_VAL
1953  #       endif
1954  #   endif
1955  #   define Perl_cos cos
1956  #   define Perl_sin sin
1957  #   define Perl_sqrt sqrt
1958  #   define Perl_exp exp
1959  #   define Perl_log log
1960  #   define Perl_atan2 atan2
1961  #   define Perl_pow pow
1962  #   define Perl_floor floor
1963  #   define Perl_ceil ceil
1964  #   define Perl_fmod fmod
1965  #   define Perl_modf(x,y) modf(x,y)
1966  #   define Perl_frexp(x,y) frexp(x,y)
1967  #endif
1968  
1969  /* rumor has it that Win32 has _fpclass() */
1970  
1971  /* SGI has fpclassl... but not with the same result values,
1972   * and it's via a typedef (not via #define), so will need to redo Configure
1973   * to use. Not worth the trouble, IMO, at least until the below is used
1974   * more places. Also has fp_class_l, BTW, via fp_class.h. Feel free to check
1975   * with me for the SGI manpages, SGI testing, etcetera, if you want to
1976   * try getting this to work with IRIX. - Allen <allens@cpan.org> */
1977  
1978  #if !defined(Perl_fp_class) && (defined(HAS_FPCLASS)||defined(HAS_FPCLASSL))
1979  #    ifdef I_IEEFP
1980  #        include <ieeefp.h>
1981  #    endif
1982  #    ifdef I_FP
1983  #        include <fp.h>
1984  #    endif
1985  #    if defined(USE_LONG_DOUBLE) && defined(HAS_FPCLASSL)
1986  #        define Perl_fp_class()        fpclassl(x)
1987  #    else
1988  #        define Perl_fp_class()        fpclass(x)
1989  #    endif
1990  #    define Perl_fp_class_snan(x)    (Perl_fp_class(x)==FP_CLASS_SNAN)
1991  #    define Perl_fp_class_qnan(x)    (Perl_fp_class(x)==FP_CLASS_QNAN)
1992  #    define Perl_fp_class_nan(x)    (Perl_fp_class(x)==FP_CLASS_SNAN||Perl_fp_class(x)==FP_CLASS_QNAN)
1993  #    define Perl_fp_class_ninf(x)    (Perl_fp_class(x)==FP_CLASS_NINF)
1994  #    define Perl_fp_class_pinf(x)    (Perl_fp_class(x)==FP_CLASS_PINF)
1995  #    define Perl_fp_class_inf(x)    (Perl_fp_class(x)==FP_CLASS_NINF||Perl_fp_class(x)==FP_CLASS_PINF)
1996  #    define Perl_fp_class_nnorm(x)    (Perl_fp_class(x)==FP_CLASS_NNORM)
1997  #    define Perl_fp_class_pnorm(x)    (Perl_fp_class(x)==FP_CLASS_PNORM)
1998  #    define Perl_fp_class_norm(x)    (Perl_fp_class(x)==FP_CLASS_NNORM||Perl_fp_class(x)==FP_CLASS_PNORM)
1999  #    define Perl_fp_class_ndenorm(x)    (Perl_fp_class(x)==FP_CLASS_NDENORM)
2000  #    define Perl_fp_class_pdenorm(x)    (Perl_fp_class(x)==FP_CLASS_PDENORM)
2001  #    define Perl_fp_class_denorm(x)    (Perl_fp_class(x)==FP_CLASS_NDENORM||Perl_fp_class(x)==FP_CLASS_PDENORM)
2002  #    define Perl_fp_class_nzero(x)    (Perl_fp_class(x)==FP_CLASS_NZERO)
2003  #    define Perl_fp_class_pzero(x)    (Perl_fp_class(x)==FP_CLASS_PZERO)
2004  #    define Perl_fp_class_zero(x)    (Perl_fp_class(x)==FP_CLASS_NZERO||Perl_fp_class(x)==FP_CLASS_PZERO)
2005  #endif
2006  
2007  #if !defined(Perl_fp_class) && defined(HAS_FP_CLASS) && !defined(PERL_MICRO)
2008  #    include <math.h>
2009  #    if !defined(FP_SNAN) && defined(I_FP_CLASS)
2010  #        include <fp_class.h>
2011  #    endif
2012  #    define Perl_fp_class(x)        fp_class(x)
2013  #    define Perl_fp_class_snan(x)    (fp_class(x)==FP_SNAN)
2014  #    define Perl_fp_class_qnan(x)    (fp_class(x)==FP_QNAN)
2015  #    define Perl_fp_class_nan(x)    (fp_class(x)==FP_SNAN||fp_class(x)==FP_QNAN)
2016  #    define Perl_fp_class_ninf(x)    (fp_class(x)==FP_NEG_INF)
2017  #    define Perl_fp_class_pinf(x)    (fp_class(x)==FP_POS_INF)
2018  #    define Perl_fp_class_inf(x)    (fp_class(x)==FP_NEG_INF||fp_class(x)==FP_POS_INF)
2019  #    define Perl_fp_class_nnorm(x)    (fp_class(x)==FP_NEG_NORM)
2020  #    define Perl_fp_class_pnorm(x)    (fp_class(x)==FP_POS_NORM)
2021  #    define Perl_fp_class_norm(x)    (fp_class(x)==FP_NEG_NORM||fp_class(x)==FP_POS_NORM)
2022  #    define Perl_fp_class_ndenorm(x)    (fp_class(x)==FP_NEG_DENORM)
2023  #    define Perl_fp_class_pdenorm(x)    (fp_class(x)==FP_POS_DENORM)
2024  #    define Perl_fp_class_denorm(x)    (fp_class(x)==FP_NEG_DENORM||fp_class(x)==FP_POS_DENORM)
2025  #    define Perl_fp_class_nzero(x)    (fp_class(x)==FP_NEG_ZERO)
2026  #    define Perl_fp_class_pzero(x)    (fp_class(x)==FP_POS_ZERO)
2027  #    define Perl_fp_class_zero(x)    (fp_class(x)==FP_NEG_ZERO||fp_class(x)==FP_POS_ZERO)
2028  #endif
2029  
2030  #if !defined(Perl_fp_class) && defined(HAS_FPCLASSIFY)
2031  #    include <math.h>
2032  #    define Perl_fp_class(x)        fpclassify(x)
2033  #    define Perl_fp_class_nan(x)    (fp_classify(x)==FP_SNAN||fp_classify(x)==FP_QNAN)
2034  #    define Perl_fp_class_inf(x)    (fp_classify(x)==FP_INFINITE)
2035  #    define Perl_fp_class_norm(x)    (fp_classify(x)==FP_NORMAL)
2036  #    define Perl_fp_class_denorm(x)    (fp_classify(x)==FP_SUBNORMAL)
2037  #    define Perl_fp_class_zero(x)    (fp_classify(x)==FP_ZERO)
2038  #endif
2039  
2040  #if !defined(Perl_fp_class) && defined(HAS_CLASS)
2041  #    include <math.h>
2042  #    ifndef _cplusplus
2043  #        define Perl_fp_class(x)    class(x)
2044  #    else
2045  #        define Perl_fp_class(x)    _class(x)
2046  #    endif
2047  #    define Perl_fp_class_snan(x)    (Perl_fp_class(x)==FP_NANS)
2048  #    define Perl_fp_class_qnan(x)    (Perl_fp_class(x)==FP_NANQ)
2049  #    define Perl_fp_class_nan(x)    (Perl_fp_class(x)==FP_SNAN||Perl_fp_class(x)==FP_QNAN)
2050  #    define Perl_fp_class_ninf(x)    (Perl_fp_class(x)==FP_MINUS_INF)
2051  #    define Perl_fp_class_pinf(x)    (Perl_fp_class(x)==FP_PLUS_INF)
2052  #    define Perl_fp_class_inf(x)    (Perl_fp_class(x)==FP_MINUS_INF||Perl_fp_class(x)==FP_PLUS_INF)
2053  #    define Perl_fp_class_nnorm(x)    (Perl_fp_class(x)==FP_MINUS_NORM)
2054  #    define Perl_fp_class_pnorm(x)    (Perl_fp_class(x)==FP_PLUS_NORM)
2055  #    define Perl_fp_class_norm(x)    (Perl_fp_class(x)==FP_MINUS_NORM||Perl_fp_class(x)==FP_PLUS_NORM)
2056  #    define Perl_fp_class_ndenorm(x)    (Perl_fp_class(x)==FP_MINUS_DENORM)
2057  #    define Perl_fp_class_pdenorm(x)    (Perl_fp_class(x)==FP_PLUS_DENORM)
2058  #    define Perl_fp_class_denorm(x)    (Perl_fp_class(x)==FP_MINUS_DENORM||Perl_fp_class(x)==FP_PLUS_DENORM)
2059  #    define Perl_fp_class_nzero(x)    (Perl_fp_class(x)==FP_MINUS_ZERO)
2060  #    define Perl_fp_class_pzero(x)    (Perl_fp_class(x)==FP_PLUS_ZERO)
2061  #    define Perl_fp_class_zero(x)    (Perl_fp_class(x)==FP_MINUS_ZERO||Perl_fp_class(x)==FP_PLUS_ZERO)
2062  #endif
2063  
2064  /* rumor has it that Win32 has _isnan() */
2065  
2066  #ifndef Perl_isnan
2067  #   ifdef HAS_ISNAN
2068  #       define Perl_isnan(x) isnan((NV)x)
2069  #   else
2070  #       ifdef Perl_fp_class_nan
2071  #           define Perl_isnan(x) Perl_fp_class_nan(x)
2072  #       else
2073  #           ifdef HAS_UNORDERED
2074  #               define Perl_isnan(x) unordered((x), 0.0)
2075  #           else
2076  #               define Perl_isnan(x) ((x)!=(x))
2077  #           endif
2078  #       endif
2079  #   endif
2080  #endif
2081  
2082  #ifdef UNDER_CE
2083  int isnan(double d);
2084  #endif
2085  
2086  #ifndef Perl_isinf
2087  #   ifdef HAS_ISINF
2088  #       define Perl_isinf(x) isinf((NV)x)
2089  #   else
2090  #       ifdef Perl_fp_class_inf
2091  #           define Perl_isinf(x) Perl_fp_class_inf(x)
2092  #       else
2093  #           define Perl_isinf(x) ((x)==NV_INF)
2094  #       endif
2095  #   endif
2096  #endif
2097  
2098  #ifndef Perl_isfinite
2099  #   ifdef HAS_FINITE
2100  #       define Perl_isfinite(x) finite((NV)x)
2101  #   else
2102  #       ifdef HAS_ISFINITE
2103  #           define Perl_isfinite(x) isfinite(x)
2104  #       else
2105  #           ifdef Perl_fp_class_finite
2106  #               define Perl_isfinite(x) Perl_fp_class_finite(x)
2107  #           else
2108  #               define Perl_isfinite(x) !(Perl_is_inf(x)||Perl_is_nan(x))
2109  #           endif
2110  #       endif
2111  #   endif
2112  #endif
2113  
2114  /* The default is to use Perl's own atof() implementation (in numeric.c).
2115   * Usually that is the one to use but for some platforms (e.g. UNICOS)
2116   * it is however best to use the native implementation of atof.
2117   * You can experiment with using your native one by -DUSE_PERL_ATOF=0.
2118   * Some good tests to try out with either setting are t/base/num.t,
2119   * t/op/numconvert.t, and t/op/pack.t. Note that if using long doubles
2120   * you may need to be using a different function than atof! */
2121  
2122  #ifndef USE_PERL_ATOF
2123  #   ifndef _UNICOS
2124  #       define USE_PERL_ATOF
2125  #   endif
2126  #else
2127  #   if USE_PERL_ATOF == 0
2128  #       undef USE_PERL_ATOF
2129  #   endif
2130  #endif
2131  
2132  #ifdef USE_PERL_ATOF
2133  #   define Perl_atof(s) Perl_my_atof(s)
2134  #   define Perl_atof2(s, n) Perl_my_atof2(aTHX_ (s), &(n))
2135  #else
2136  #   define Perl_atof(s) (NV)atof(s)
2137  #   define Perl_atof2(s, n) ((n) = atof(s))
2138  #endif
2139  
2140  /* Previously these definitions used hardcoded figures.
2141   * It is hoped these formula are more portable, although
2142   * no data one way or another is presently known to me.
2143   * The "PERL_" names are used because these calculated constants
2144   * do not meet the ANSI requirements for LONG_MAX, etc., which
2145   * need to be constants acceptable to #if - kja
2146   *    define PERL_LONG_MAX        2147483647L
2147   *    define PERL_LONG_MIN        (-LONG_MAX - 1)
2148   *    define PERL ULONG_MAX       4294967295L
2149   */
2150  
2151  #ifdef I_LIMITS  /* Needed for cast_xxx() functions below. */
2152  #  include <limits.h>
2153  #endif
2154  /* Included values.h above if necessary; still including limits.h down here,
2155   * despite doing above, because math.h might have overriden... XXX - Allen */
2156  
2157  /*
2158   * Try to figure out max and min values for the integral types.  THE CORRECT
2159   * SOLUTION TO THIS MESS: ADAPT enquire.c FROM GCC INTO CONFIGURE.  The
2160   * following hacks are used if neither limits.h or values.h provide them:
2161   * U<TYPE>_MAX: for types >= int: ~(unsigned TYPE)0
2162   *              for types <  int:  (unsigned TYPE)~(unsigned)0
2163   *    The argument to ~ must be unsigned so that later signed->unsigned
2164   *    conversion can't modify the value's bit pattern (e.g. -0 -> +0),
2165   *    and it must not be smaller than int because ~ does integral promotion.
2166   * <type>_MAX: (<type>) (U<type>_MAX >> 1)
2167   * <type>_MIN: -<type>_MAX - <is_twos_complement_architecture: (3 & -1) == 3>.
2168   *    The latter is a hack which happens to work on some machines but
2169   *    does *not* catch any random system, or things like integer types
2170   *    with NaN if that is possible.
2171   *
2172   * All of the types are explicitly cast to prevent accidental loss of
2173   * numeric range, and in the hope that they will be less likely to confuse
2174   * over-eager optimizers.
2175   *
2176   */
2177  
2178  #define PERL_UCHAR_MIN ((unsigned char)0)
2179  
2180  #ifdef UCHAR_MAX
2181  #  define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX)
2182  #else
2183  #  ifdef MAXUCHAR
2184  #    define PERL_UCHAR_MAX ((unsigned char)MAXUCHAR)
2185  #  else
2186  #    define PERL_UCHAR_MAX       ((unsigned char)~(unsigned)0)
2187  #  endif
2188  #endif
2189  
2190  /*
2191   * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be
2192   * ambiguous. It may be equivalent to (signed char) or (unsigned char)
2193   * depending on local options. Until Configure detects this (or at least
2194   * detects whether the "signed" keyword is available) the CHAR ranges
2195   * will not be included. UCHAR functions normally.
2196   *                                                           - kja
2197   */
2198  
2199  #define PERL_USHORT_MIN ((unsigned short)0)
2200  
2201  #ifdef USHORT_MAX
2202  #  define PERL_USHORT_MAX ((unsigned short)USHORT_MAX)
2203  #else
2204  #  ifdef MAXUSHORT
2205  #    define PERL_USHORT_MAX ((unsigned short)MAXUSHORT)
2206  #  else
2207  #    ifdef USHRT_MAX
2208  #      define PERL_USHORT_MAX ((unsigned short)USHRT_MAX)
2209  #    else
2210  #      define PERL_USHORT_MAX       ((unsigned short)~(unsigned)0)
2211  #    endif
2212  #  endif
2213  #endif
2214  
2215  #ifdef SHORT_MAX
2216  #  define PERL_SHORT_MAX ((short)SHORT_MAX)
2217  #else
2218  #  ifdef MAXSHORT    /* Often used in <values.h> */
2219  #    define PERL_SHORT_MAX ((short)MAXSHORT)
2220  #  else
2221  #    ifdef SHRT_MAX
2222  #      define PERL_SHORT_MAX ((short)SHRT_MAX)
2223  #    else
2224  #      define PERL_SHORT_MAX      ((short) (PERL_USHORT_MAX >> 1))
2225  #    endif
2226  #  endif
2227  #endif
2228  
2229  #ifdef SHORT_MIN
2230  #  define PERL_SHORT_MIN ((short)SHORT_MIN)
2231  #else
2232  #  ifdef MINSHORT
2233  #    define PERL_SHORT_MIN ((short)MINSHORT)
2234  #  else
2235  #    ifdef SHRT_MIN
2236  #      define PERL_SHORT_MIN ((short)SHRT_MIN)
2237  #    else
2238  #      define PERL_SHORT_MIN        (-PERL_SHORT_MAX - ((3 & -1) == 3))
2239  #    endif
2240  #  endif
2241  #endif
2242  
2243  #ifdef UINT_MAX
2244  #  define PERL_UINT_MAX ((unsigned int)UINT_MAX)
2245  #else
2246  #  ifdef MAXUINT
2247  #    define PERL_UINT_MAX ((unsigned int)MAXUINT)
2248  #  else
2249  #    define PERL_UINT_MAX       (~(unsigned int)0)
2250  #  endif
2251  #endif
2252  
2253  #define PERL_UINT_MIN ((unsigned int)0)
2254  
2255  #ifdef INT_MAX
2256  #  define PERL_INT_MAX ((int)INT_MAX)
2257  #else
2258  #  ifdef MAXINT    /* Often used in <values.h> */
2259  #    define PERL_INT_MAX ((int)MAXINT)
2260  #  else
2261  #    define PERL_INT_MAX        ((int)(PERL_UINT_MAX >> 1))
2262  #  endif
2263  #endif
2264  
2265  #ifdef INT_MIN
2266  #  define PERL_INT_MIN ((int)INT_MIN)
2267  #else
2268  #  ifdef MININT
2269  #    define PERL_INT_MIN ((int)MININT)
2270  #  else
2271  #    define PERL_INT_MIN        (-PERL_INT_MAX - ((3 & -1) == 3))
2272  #  endif
2273  #endif
2274  
2275  #ifdef ULONG_MAX
2276  #  define PERL_ULONG_MAX ((unsigned long)ULONG_MAX)
2277  #else
2278  #  ifdef MAXULONG
2279  #    define PERL_ULONG_MAX ((unsigned long)MAXULONG)
2280  #  else
2281  #    define PERL_ULONG_MAX       (~(unsigned long)0)
2282  #  endif
2283  #endif
2284  
2285  #define PERL_ULONG_MIN ((unsigned long)0L)
2286  
2287  #ifdef LONG_MAX
2288  #  define PERL_LONG_MAX ((long)LONG_MAX)
2289  #else
2290  #  ifdef MAXLONG    /* Often used in <values.h> */
2291  #    define PERL_LONG_MAX ((long)MAXLONG)
2292  #  else
2293  #    define PERL_LONG_MAX        ((long) (PERL_ULONG_MAX >> 1))
2294  #  endif
2295  #endif
2296  
2297  #ifdef LONG_MIN
2298  #  define PERL_LONG_MIN ((long)LONG_MIN)
2299  #else
2300  #  ifdef MINLONG
2301  #    define PERL_LONG_MIN ((long)MINLONG)
2302  #  else
2303  #    define PERL_LONG_MIN        (-PERL_LONG_MAX - ((3 & -1) == 3))
2304  #  endif
2305  #endif
2306  
2307  #ifdef UV_IS_QUAD
2308  
2309  #    define PERL_UQUAD_MAX    (~(UV)0)
2310  #    define PERL_UQUAD_MIN    ((UV)0)
2311  #    define PERL_QUAD_MAX     ((IV) (PERL_UQUAD_MAX >> 1))
2312  #    define PERL_QUAD_MIN     (-PERL_QUAD_MAX - ((3 & -1) == 3))
2313  
2314  #endif
2315  
2316  #ifdef MYMALLOC
2317  #  include "malloc_ctl.h"
2318  #endif
2319  
2320  struct RExC_state_t;
2321  struct _reg_trie_data;
2322  
2323  typedef MEM_SIZE STRLEN;
2324  
2325  #ifdef PERL_MAD
2326  typedef struct token TOKEN;
2327  typedef struct madprop MADPROP;
2328  typedef struct nexttoken NEXTTOKE;
2329  #endif
2330  typedef struct op OP;
2331  typedef struct cop COP;
2332  typedef struct unop UNOP;
2333  typedef struct binop BINOP;
2334  typedef struct listop LISTOP;
2335  typedef struct logop LOGOP;
2336  typedef struct pmop PMOP;
2337  typedef struct svop SVOP;
2338  typedef struct padop PADOP;
2339  typedef struct pvop PVOP;
2340  typedef struct loop LOOP;
2341  
2342  typedef struct interpreter PerlInterpreter;
2343  
2344  /* Amdahl's <ksync.h> has struct sv */
2345  /* SGI's <sys/sema.h> has struct sv */
2346  #if defined(UTS) || defined(__sgi)
2347  #   define STRUCT_SV perl_sv
2348  #else
2349  #   define STRUCT_SV sv
2350  #endif
2351  typedef struct STRUCT_SV SV;
2352  typedef struct av AV;
2353  typedef struct hv HV;
2354  typedef struct cv CV;
2355  typedef struct regexp REGEXP;
2356  typedef struct gp GP;
2357  typedef struct gv GV;
2358  typedef struct io IO;
2359  typedef struct context PERL_CONTEXT;
2360  typedef struct block BLOCK;
2361  
2362  typedef struct magic MAGIC;
2363  typedef struct xpv XPV;
2364  typedef struct xpviv XPVIV;
2365  typedef struct xpvuv XPVUV;
2366  typedef struct xpvnv XPVNV;
2367  typedef struct xpvmg XPVMG;
2368  typedef struct xpvlv XPVLV;
2369  typedef struct xpvav XPVAV;
2370  typedef struct xpvhv XPVHV;
2371  typedef struct xpvgv XPVGV;
2372  typedef struct xpvcv XPVCV;
2373  typedef struct xpvbm XPVBM;
2374  typedef struct xpvfm XPVFM;
2375  typedef struct xpvio XPVIO;
2376  typedef struct mgvtbl MGVTBL;
2377  typedef union any ANY;
2378  typedef struct ptr_tbl_ent PTR_TBL_ENT_t;
2379  typedef struct ptr_tbl PTR_TBL_t;
2380  typedef struct clone_params CLONE_PARAMS;
2381  
2382  #include "handy.h"
2383  
2384  #if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_RAWIO)
2385  #   if LSEEKSIZE == 8 && !defined(USE_64_BIT_RAWIO)
2386  #       define USE_64_BIT_RAWIO    /* implicit */
2387  #   endif
2388  #endif
2389  
2390  /* Notice the use of HAS_FSEEKO: now we are obligated to always use
2391   * fseeko/ftello if possible.  Don't go #defining ftell to ftello yourself,
2392   * however, because operating systems like to do that themself. */
2393  #ifndef FSEEKSIZE
2394  #   ifdef HAS_FSEEKO
2395  #       define FSEEKSIZE LSEEKSIZE
2396  #   else
2397  #       define FSEEKSIZE LONGSIZE
2398  #   endif
2399  #endif
2400  
2401  #if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_STDIO)
2402  #   if FSEEKSIZE == 8 && !defined(USE_64_BIT_STDIO)
2403  #       define USE_64_BIT_STDIO /* implicit */
2404  #   endif
2405  #endif
2406  
2407  #ifdef USE_64_BIT_RAWIO
2408  #   ifdef HAS_OFF64_T
2409  #       undef Off_t
2410  #       define Off_t off64_t
2411  #       undef LSEEKSIZE
2412  #       define LSEEKSIZE 8
2413  #   endif
2414  /* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2415   * will trigger defines like the ones below.  Some 64-bit environments,
2416   * however, do not.  Therefore we have to explicitly mix and match. */
2417  #   if defined(USE_OPEN64)
2418  #       define open open64
2419  #   endif
2420  #   if defined(USE_LSEEK64)
2421  #       define lseek lseek64
2422  #   else
2423  #       if defined(USE_LLSEEK)
2424  #           define lseek llseek
2425  #       endif
2426  #   endif
2427  #   if defined(USE_STAT64)
2428  #       define stat stat64
2429  #   endif
2430  #   if defined(USE_FSTAT64)
2431  #       define fstat fstat64
2432  #   endif
2433  #   if defined(USE_LSTAT64)
2434  #       define lstat lstat64
2435  #   endif
2436  #   if defined(USE_FLOCK64)
2437  #       define flock flock64
2438  #   endif
2439  #   if defined(USE_LOCKF64)
2440  #       define lockf lockf64
2441  #   endif
2442  #   if defined(USE_FCNTL64)
2443  #       define fcntl fcntl64
2444  #   endif
2445  #   if defined(USE_TRUNCATE64)
2446  #       define truncate truncate64
2447  #   endif
2448  #   if defined(USE_FTRUNCATE64)
2449  #       define ftruncate ftruncate64
2450  #   endif
2451  #endif
2452  
2453  #ifdef USE_64_BIT_STDIO
2454  #   ifdef HAS_FPOS64_T
2455  #       undef Fpos_t
2456  #       define Fpos_t fpos64_t
2457  #   endif
2458  /* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
2459   * will trigger defines like the ones below.  Some 64-bit environments,
2460   * however, do not. */
2461  #   if defined(USE_FOPEN64)
2462  #       define fopen fopen64
2463  #   endif
2464  #   if defined(USE_FSEEK64)
2465  #       define fseek fseek64 /* don't do fseeko here, see perlio.c */
2466  #   endif
2467  #   if defined(USE_FTELL64)
2468  #       define ftell ftell64 /* don't do ftello here, see perlio.c */
2469  #   endif
2470  #   if defined(USE_FSETPOS64)
2471  #       define fsetpos fsetpos64
2472  #   endif
2473  #   if defined(USE_FGETPOS64)
2474  #       define fgetpos fgetpos64
2475  #   endif
2476  #   if defined(USE_TMPFILE64)
2477  #       define tmpfile tmpfile64
2478  #   endif
2479  #   if defined(USE_FREOPEN64)
2480  #       define freopen freopen64
2481  #   endif
2482  #endif
2483  
2484  #if defined(OS2) || defined(MACOS_TRADITIONAL)
2485  #  include "iperlsys.h"
2486  #endif
2487  
2488  #if defined(__OPEN_VM)
2489  #   include "vmesa/vmesaish.h"
2490  #   define ISHISH "vmesa"
2491  #endif
2492  
2493  #ifdef DOSISH
2494  #   if defined(OS2)
2495  #       include "os2ish.h"
2496  #   else
2497  #       include "dosish.h"
2498  #   endif
2499  #   define ISHISH "dos"
2500  #endif
2501  
2502  #if defined(VMS)
2503  #   include "vmsish.h"
2504  #   include "embed.h"
2505  #  ifndef PERL_MAD
2506  #    undef op_getmad
2507  #    define op_getmad(arg,pegop,slot) NOOP
2508  #  endif
2509  #   define ISHISH "vms"
2510  #endif
2511  
2512  #if defined(PLAN9)
2513  #   include "./plan9/plan9ish.h"
2514  #   define ISHISH "plan9"
2515  #endif
2516  
2517  #if defined(MPE)
2518  #  include "mpeix/mpeixish.h"
2519  #  define ISHISH "mpeix"
2520  #endif
2521  
2522  #if defined(__VOS__)
2523  #   ifdef __GNUC__
2524  #     include "./vos/vosish.h"
2525  #   else
2526  #     include "vos/vosish.h"
2527  #   endif
2528  #   define ISHISH "vos"
2529  #endif
2530  
2531  #if defined(EPOC)
2532  #   include "epocish.h"
2533  #   define ISHISH "epoc"
2534  #endif
2535  
2536  #ifdef __SYMBIAN32__
2537  #   include "symbian/symbianish.h"
2538  #   include "embed.h"
2539  #  ifndef PERL_MAD
2540  #    undef op_getmad
2541  #    define op_getmad(arg,pegop,slot) NOOP
2542  #  endif
2543  #   define ISHISH "symbian"
2544  #endif
2545  
2546  #if defined(MACOS_TRADITIONAL)
2547  #   include "macos/macish.h"
2548  #   ifndef NO_ENVIRON_ARRAY
2549  #       define NO_ENVIRON_ARRAY
2550  #   endif
2551  #   define ISHISH "macos classic"
2552  #endif
2553  
2554  #if defined(__BEOS__)
2555  #   include "beos/beosish.h"
2556  #   define ISHISH "beos"
2557  #endif
2558  
2559  #ifndef ISHISH
2560  #   include "unixish.h"
2561  #   define ISHISH "unix"
2562  #endif
2563  
2564  /* NSIG logic from Configure --> */
2565  /* Strange style to avoid deeply-nested #if/#else/#endif */
2566  #ifndef NSIG
2567  #  ifdef _NSIG
2568  #    define NSIG (_NSIG)
2569  #  endif
2570  #endif
2571  
2572  #ifndef NSIG
2573  #  ifdef SIGMAX
2574  #    define NSIG (SIGMAX+1)
2575  #  endif
2576  #endif
2577  
2578  #ifndef NSIG
2579  #  ifdef SIG_MAX
2580  #    define NSIG (SIG_MAX+1)
2581  #  endif
2582  #endif
2583  
2584  #ifndef NSIG
2585  #  ifdef _SIG_MAX
2586  #    define NSIG (_SIG_MAX+1)
2587  #  endif
2588  #endif
2589  
2590  #ifndef NSIG
2591  #  ifdef MAXSIG
2592  #    define NSIG (MAXSIG+1)
2593  #  endif
2594  #endif
2595  
2596  #ifndef NSIG
2597  #  ifdef MAX_SIG
2598  #    define NSIG (MAX_SIG+1)
2599  #  endif
2600  #endif
2601  
2602  #ifndef NSIG
2603  #  ifdef SIGARRAYSIZE
2604  #    define NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
2605  #  endif
2606  #endif
2607  
2608  #ifndef NSIG
2609  #  ifdef _sys_nsig
2610  #    define NSIG (_sys_nsig) /* Solaris 2.5 */
2611  #  endif
2612  #endif
2613  
2614  /* Default to some arbitrary number that's big enough to get most
2615     of the common signals.
2616  */
2617  #ifndef NSIG
2618  #    define NSIG 50
2619  #endif
2620  /* <-- NSIG logic from Configure */
2621  
2622  #ifndef NO_ENVIRON_ARRAY
2623  #  define USE_ENVIRON_ARRAY
2624  #endif
2625  
2626  /*
2627   * initialise to avoid floating-point exceptions from overflow, etc
2628   */
2629  #ifndef PERL_FPU_INIT
2630  #  ifdef HAS_FPSETMASK
2631  #    if HAS_FLOATINGPOINT_H
2632  #      include <floatingpoint.h>
2633  #    endif
2634  #    define PERL_FPU_INIT fpsetmask(0)
2635  #  else
2636  #    if defined(SIGFPE) && defined(SIG_IGN) && !defined(PERL_MICRO)
2637  #      define PERL_FPU_INIT       PL_sigfpe_saved = (Sighandler_t) signal(SIGFPE, SIG_IGN)
2638  #      define PERL_FPU_PRE_EXEC   { Sigsave_t xfpe; rsignal_save(SIGFPE, PL_sigfpe_saved, &xfpe);
2639  #      define PERL_FPU_POST_EXEC    rsignal_restore(SIGFPE, &xfpe); }
2640  #    else
2641  #      define PERL_FPU_INIT
2642  
2643  #    endif
2644  #  endif
2645  #endif
2646  #ifndef PERL_FPU_PRE_EXEC
2647  #  define PERL_FPU_PRE_EXEC   {
2648  #  define PERL_FPU_POST_EXEC  }
2649  #endif
2650  
2651  #ifndef PERL_SYS_INIT3_BODY
2652  #  define PERL_SYS_INIT3_BODY(argvp,argcp,envp) PERL_SYS_INIT_BODY(argvp,argcp)
2653  #endif
2654  
2655  #define PERL_SYS_INIT(argc, argv)    Perl_sys_init(argc, argv)
2656  #define PERL_SYS_INIT3(argc, argv, env)    Perl_sys_init3(argc, argv, env)
2657  #define PERL_SYS_TERM()            Perl_sys_term()
2658  
2659  #ifndef PERL_WRITE_MSG_TO_CONSOLE
2660  #  define PERL_WRITE_MSG_TO_CONSOLE(io, msg, len) PerlIO_write(io, msg, len)
2661  #endif
2662  
2663  #ifndef MAXPATHLEN
2664  #  ifdef PATH_MAX
2665  #    ifdef _POSIX_PATH_MAX
2666  #       if PATH_MAX > _POSIX_PATH_MAX
2667  /* POSIX 1990 (and pre) was ambiguous about whether PATH_MAX
2668   * included the null byte or not.  Later amendments of POSIX,
2669   * XPG4, the Austin Group, and the Single UNIX Specification
2670   * all explicitly include the null byte in the PATH_MAX.
2671   * Ditto for _POSIX_PATH_MAX. */
2672  #         define MAXPATHLEN PATH_MAX
2673  #       else
2674  #         define MAXPATHLEN _POSIX_PATH_MAX
2675  #       endif
2676  #    else
2677  #      define MAXPATHLEN (PATH_MAX+1)
2678  #    endif
2679  #  else
2680  #    ifdef _POSIX_PATH_MAX
2681  #       define MAXPATHLEN _POSIX_PATH_MAX
2682  #    else
2683  #       define MAXPATHLEN 1024    /* Err on the large side. */
2684  #    endif
2685  #  endif
2686  #endif
2687  
2688  /* In case Configure was not used (we are using a "canned config"
2689   * such as Win32, or a cross-compilation setup, for example) try going
2690   * by the gcc major and minor versions.  One useful URL is
2691   * http://www.ohse.de/uwe/articles/gcc-attributes.html,
2692   * but contrary to this information warn_unused_result seems
2693   * not to be in gcc 3.3.5, at least. --jhi
2694   * Also, when building extensions with an installed perl, this allows
2695   * the user to upgrade gcc and get the right attributes, rather than
2696   * relying on the list generated at Configure time.  --AD
2697   * Set these up now otherwise we get confused when some of the <*thread.h>
2698   * includes below indirectly pull in <perlio.h> (which needs to know if we
2699   * have HASATTRIBUTE_FORMAT).
2700   */
2701  
2702  #ifndef PERL_MICRO
2703  #if defined __GNUC__ && !defined(__INTEL_COMPILER)
2704  #  if __GNUC__ >= 3 /* 3.0 -> */ /* XXX Verify this version */
2705  #    define HASATTRIBUTE_FORMAT
2706  #    if defined __MINGW32__
2707  #      define PRINTF_FORMAT_NULL_OK
2708  #    endif
2709  #  endif
2710  #  if __GNUC__ >= 3 /* 3.0 -> */
2711  #    define HASATTRIBUTE_MALLOC
2712  #  endif
2713  #  if __GNUC__ == 3 && __GNUC_MINOR__ >= 3 || __GNUC__ > 3 /* 3.3 -> */
2714  #    define HASATTRIBUTE_NONNULL
2715  #  endif
2716  #  if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 || __GNUC__ > 2 /* 2.5 -> */
2717  #    define HASATTRIBUTE_NORETURN
2718  #  endif
2719  #  if __GNUC__ >= 3 /* gcc 3.0 -> */
2720  #    define HASATTRIBUTE_PURE
2721  #  endif
2722  #  if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
2723  #    define HASATTRIBUTE_UNUSED
2724  #  endif
2725  #  if __GNUC__ == 3 && __GNUC_MINOR__ == 3 && !defined(__cplusplus)
2726  #    define HASATTRIBUTE_UNUSED /* gcc-3.3, but not g++-3.3. */
2727  #  endif
2728  #  if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */
2729  #    define HASATTRIBUTE_WARN_UNUSED_RESULT
2730  #  endif
2731  #endif
2732  #endif /* #ifndef PERL_MICRO */ 
2733  
2734  /* USE_5005THREADS needs to be after unixish.h as <pthread.h> includes
2735   * <sys/signal.h> which defines NSIG - which will stop inclusion of <signal.h>
2736   * this results in many functions being undeclared which bothers C++
2737   * May make sense to have threads after "*ish.h" anyway
2738   */
2739  
2740  #if defined(USE_ITHREADS)
2741  #  ifdef NETWARE
2742  #   include <nw5thread.h>
2743  #  else
2744  #  ifdef FAKE_THREADS
2745  #    include "fakethr.h"
2746  #  else
2747  #    ifdef WIN32
2748  #      include <win32thread.h>
2749  #    else
2750  #      ifdef OS2
2751  #        include "os2thread.h"
2752  #      else
2753  #        ifdef I_MACH_CTHREADS
2754  #          include <mach/cthreads.h>
2755  #          if (defined(NeXT) || defined(__NeXT__)) && defined(PERL_POLLUTE_MALLOC)
2756  #            define MUTEX_INIT_CALLS_MALLOC
2757  #          endif
2758  typedef cthread_t    perl_os_thread;
2759  typedef mutex_t        perl_mutex;
2760  typedef condition_t    perl_cond;
2761  typedef void *        perl_key;
2762  #        else /* Posix threads */
2763  #          ifdef I_PTHREAD
2764  #            include <pthread.h>
2765  #          endif
2766  typedef pthread_t    perl_os_thread;
2767  typedef pthread_mutex_t    perl_mutex;
2768  typedef pthread_cond_t    perl_cond;
2769  typedef pthread_key_t    perl_key;
2770  #        endif /* I_MACH_CTHREADS */
2771  #      endif /* OS2 */
2772  #    endif /* WIN32 */
2773  #  endif /* FAKE_THREADS */
2774  #endif    /* NETWARE */
2775  #endif /* USE_ITHREADS */
2776  
2777  #if defined(WIN32)
2778  #  include "win32.h"
2779  #endif
2780  
2781  #ifdef NETWARE
2782  #  include "netware.h"
2783  #endif
2784  
2785  #define STATUS_UNIX    PL_statusvalue
2786  #ifdef VMS
2787  #   define STATUS_NATIVE    PL_statusvalue_vms
2788  /*
2789   * vaxc$errno is only guaranteed to be valid if errno == EVMSERR, otherwise
2790   * its contents can not be trusted.  Unfortunately, Perl seems to check
2791   * it on exit, so it when PL_statusvalue_vms is updated, vaxc$errno should
2792   * be updated also.
2793   */
2794  #  include <stsdef.h>
2795  #  include <ssdef.h>
2796  /* Presume this because if VMS changes it, it will require a new
2797   * set of APIs for waiting on children for binary compatibility.
2798   */
2799  #  define child_offset_bits (8)
2800  #  ifndef C_FAC_POSIX
2801  #  define C_FAC_POSIX 0x35A000
2802  #  endif
2803  
2804  /*  STATUS_EXIT - validates and returns a NATIVE exit status code for the
2805   * platform from the existing UNIX or Native status values.
2806   */
2807  
2808  #   define STATUS_EXIT \
2809      (((I32)PL_statusvalue_vms == -1 ? SS$_ABORT : PL_statusvalue_vms) | \
2810         (VMSISH_HUSHED ? STS$M_INHIB_MSG : 0))
2811  
2812  
2813  /* STATUS_NATIVE_CHILD_SET - Calculate UNIX status that matches the child
2814   * exit code and shifts the UNIX value over the correct number of bits to
2815   * be a child status.  Usually the number of bits is 8, but that could be
2816   * platform dependent.  The NATIVE status code is presumed to have either
2817   * from a child process.
2818   */
2819  
2820  /* This is complicated.  The child processes return a true native VMS
2821     status which must be saved.  But there is an assumption in Perl that
2822     the UNIX child status has some relationship to errno values, so
2823     Perl tries to translate it to text in some of the tests.  
2824     In order to get the string translation correct, for the error, errno
2825     must be EVMSERR, but that generates a different text message
2826     than what the test programs are expecting.  So an errno value must
2827     be derived from the native status value when an error occurs.
2828     That will hide the true native status message.  With this version of
2829     perl, the true native child status can always be retrieved so that
2830     is not a problem.  But in this case, Pl_statusvalue and errno may
2831     have different values in them.
2832   */
2833  
2834  #   define STATUS_NATIVE_CHILD_SET(n) \
2835      STMT_START {                            \
2836          I32 evalue = (I32)n;                    \
2837          if (evalue == EVMSERR) {                    \
2838            PL_statusvalue_vms = vaxc$errno;                \
2839            PL_statusvalue = evalue;                    \
2840          } else {                            \
2841            PL_statusvalue_vms = evalue;                \
2842            if (evalue == -1) {                    \
2843          PL_statusvalue = -1;                    \
2844          PL_statusvalue_vms = SS$_ABORT; /* Should not happen */ \
2845            } else                            \
2846          PL_statusvalue = Perl_vms_status_to_unix(evalue, 1);    \
2847            set_vaxc_errno(evalue);                    \
2848            if ((PL_statusvalue_vms & C_FAC_POSIX) == C_FAC_POSIX)    \
2849            set_errno(EVMSERR);                    \
2850            else set_errno(Perl_vms_status_to_unix(evalue, 0));    \
2851            PL_statusvalue = PL_statusvalue << child_offset_bits;    \
2852          }                                \
2853      } STMT_END
2854  
2855  #   ifdef VMSISH_STATUS
2856  #    define STATUS_CURRENT    (VMSISH_STATUS ? STATUS_NATIVE : STATUS_UNIX)
2857  #   else
2858  #    define STATUS_CURRENT    STATUS_UNIX
2859  #   endif
2860  
2861    /* STATUS_UNIX_SET - takes a UNIX/POSIX errno value and attempts to update
2862     * the NATIVE status to an equivalent value.  Can not be used to translate
2863     * exit code values as exit code values are not guaranteed to have any
2864     * relationship at all to errno values.
2865     * This is used when Perl is forcing errno to have a specific value.
2866     */
2867  #   define STATUS_UNIX_SET(n)                \
2868      STMT_START {                    \
2869          I32 evalue = (I32)n;            \
2870          PL_statusvalue = evalue;            \
2871          if (PL_statusvalue != -1) {            \
2872          if (PL_statusvalue != EVMSERR) {    \
2873            PL_statusvalue &= 0xFFFF;        \
2874            if (MY_POSIX_EXIT)            \
2875              PL_statusvalue_vms=PL_statusvalue ? SS$_ABORT : SS$_NORMAL;\
2876            else PL_statusvalue_vms = Perl_unix_status_to_vms(evalue); \
2877          }                    \
2878          else {                    \
2879            PL_statusvalue_vms = vaxc$errno;    \
2880          }                    \
2881          }                        \
2882          else PL_statusvalue_vms = SS$_ABORT;    \
2883          set_vaxc_errno(PL_statusvalue_vms);        \
2884      } STMT_END
2885  
2886    /* STATUS_UNIX_EXIT_SET - Takes a UNIX/POSIX exit code and sets
2887     * the NATIVE error status based on it.  It does not assume that
2888     * the UNIX/POSIX exit codes have any relationship to errno, except
2889     * that 0 indicates a success.  When in the default mode to comply
2890     * with the Perl VMS documentation, any other code sets the NATIVE
2891     * status to a failure code of SS$_ABORT.
2892     *
2893     * In the new POSIX EXIT mode, native status will be set so that the
2894     * actual exit code will can be retrieved by the calling program or
2895     * shell.
2896     *
2897     * If the exit code is not clearly a UNIX parent or child exit status,
2898     * it will be passed through as a VMS status.
2899     */
2900  
2901  #   define STATUS_UNIX_EXIT_SET(n)            \
2902      STMT_START {                    \
2903          I32 evalue = (I32)n;            \
2904          PL_statusvalue = evalue;            \
2905          if (evalue != -1) {                \
2906            if (evalue <= 0xFF00) {            \
2907          if (evalue > 0xFF)            \
2908            evalue = (evalue >> child_offset_bits) & 0xFF; \
2909          if (evalue == 0)            \
2910            PL_statusvalue_vms == SS$_NORMAL;    \
2911          else                    \
2912            if (MY_POSIX_EXIT)            \
2913              PL_statusvalue_vms =    \
2914                 (C_FAC_POSIX | (evalue << 3 ) | (evalue == 1)? \
2915                  (STS$K_ERROR | STS$M_INHIB_MSG) : 1); \
2916            else                    \
2917              PL_statusvalue_vms = SS$_ABORT; \
2918            } else { /* forgive them Perl, for they have sinned */ \
2919          if (evalue != EVMSERR) PL_statusvalue_vms = evalue; \
2920          else PL_statusvalue_vms = vaxc$errno;        \
2921              /* And obviously used a VMS status value instead of UNIX */ \
2922              PL_statusvalue = EVMSERR;                \
2923            }                            \
2924          }                            \
2925          else PL_statusvalue_vms = SS$_ABORT;        \
2926          set_vaxc_errno(PL_statusvalue_vms);            \
2927      } STMT_END
2928  
2929    /* STATUS_EXIT_SET - Takes a NATIVE/UNIX/POSIX exit code
2930     * and sets the NATIVE error status based on it.  This special case
2931     * is needed to maintain compatibility with past VMS behavior.
2932     *
2933     * In the default mode on VMS, this number is passed through as
2934     * both the NATIVE and UNIX status.  Which makes it different
2935     * that the STATUS_UNIX_EXIT_SET.
2936     *
2937     * In the new POSIX EXIT mode, native status will be set so that the
2938     * actual exit code will can be retrieved by the calling program or
2939     * shell.
2940     *
2941     */
2942  
2943  #   define STATUS_EXIT_SET(n)                \
2944      STMT_START {                    \
2945          I32 evalue = (I32)n;            \
2946          PL_statusvalue = evalue;            \
2947          if (MY_POSIX_EXIT)                \
2948          PL_statusvalue_vms =            \
2949            (C_FAC_POSIX | (evalue << 3 ) | (evalue == 1)? \
2950             (STS$K_ERROR | STS$M_INHIB_MSG) : 1); \
2951          else                    \
2952          PL_statusvalue_vms = evalue ? evalue : SS$_NORMAL; \
2953          set_vaxc_errno(PL_statusvalue_vms);        \
2954      } STMT_END
2955  
2956  
2957   /* This macro forces a success status */
2958  #   define STATUS_ALL_SUCCESS    \
2959      (PL_statusvalue = 0, PL_statusvalue_vms = SS$_NORMAL)
2960  
2961   /* This macro forces a failure status */
2962  #   define STATUS_ALL_FAILURE    (PL_statusvalue = 1, \
2963       vaxc$errno = PL_statusvalue_vms = MY_POSIX_EXIT ? \
2964      (C_FAC_POSIX | (1 << 3) | STS$K_ERROR | STS$M_INHIB_MSG) : SS$_ABORT)
2965  
2966  #else
2967  #   define STATUS_NATIVE    PL_statusvalue_posix
2968  #   if defined(WCOREDUMP)
2969  #       define STATUS_NATIVE_CHILD_SET(n)                  \
2970              STMT_START {                                   \
2971                  PL_statusvalue_posix = (n);                \
2972                  if (PL_statusvalue_posix == -1)            \
2973                      PL_statusvalue = -1;                   \
2974                  else {                                     \
2975                      PL_statusvalue =                       \
2976                          (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) |  \
2977                          (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0) | \
2978                          (WIFSIGNALED(PL_statusvalue_posix) && WCOREDUMP(PL_statusvalue_posix) ? 0x80 : 0);  \
2979                  }                                          \
2980              } STMT_END
2981  #   elif defined(WIFEXITED)
2982  #       define STATUS_NATIVE_CHILD_SET(n)                  \
2983              STMT_START {                                   \
2984                  PL_statusvalue_posix = (n);                \
2985                  if (PL_statusvalue_posix == -1)            \
2986                      PL_statusvalue = -1;                   \
2987                  else {                                     \
2988                      PL_statusvalue =                       \
2989                          (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) |  \
2990                          (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0);  \
2991                  }                                          \
2992              } STMT_END
2993  #   else
2994  #       define STATUS_NATIVE_CHILD_SET(n)                  \
2995              STMT_START {                                   \
2996                  PL_statusvalue_posix = (n);                \
2997                  if (PL_statusvalue_posix == -1)            \
2998                      PL_statusvalue = -1;                   \
2999                  else {                                     \
3000                      PL_statusvalue =                       \
3001                          PL_statusvalue_posix & 0xFFFF;     \
3002                  }                                          \
3003              } STMT_END
3004  #   endif
3005  #   define STATUS_UNIX_SET(n)        \
3006      STMT_START {            \
3007          PL_statusvalue = (n);        \
3008          if (PL_statusvalue != -1)    \
3009          PL_statusvalue &= 0xFFFF;    \
3010      } STMT_END
3011  #   define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n)
3012  #   define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n)
3013  #   define STATUS_CURRENT STATUS_UNIX
3014  #   define STATUS_EXIT STATUS_UNIX
3015  #   define STATUS_ALL_SUCCESS    (PL_statusvalue = 0, PL_statusvalue_posix = 0)
3016  #   define STATUS_ALL_FAILURE    (PL_statusvalue = 1, PL_statusvalue_posix = 1)
3017  #endif
3018  
3019  /* flags in PL_exit_flags for nature of exit() */
3020  #define PERL_EXIT_EXPECTED    0x01
3021  #define PERL_EXIT_DESTRUCT_END  0x02  /* Run END in perl_destruct */
3022  
3023  #ifndef MEMBER_TO_FPTR
3024  #  define MEMBER_TO_FPTR(name)        name
3025  #endif
3026  
3027  /* format to use for version numbers in file/directory names */
3028  /* XXX move to Configure? */
3029  #ifndef PERL_FS_VER_FMT
3030  #  define PERL_FS_VER_FMT    "%d.%d.%d"
3031  #endif
3032  
3033  /* This defines a way to flush all output buffers.  This may be a
3034   * performance issue, so we allow people to disable it.  Also, if
3035   * we are using stdio, there are broken implementations of fflush(NULL)
3036   * out there, Solaris being the most prominent.
3037   */
3038  #ifndef PERL_FLUSHALL_FOR_CHILD
3039  # if defined(USE_PERLIO) || defined(FFLUSH_NULL) || defined(USE_SFIO)
3040  #  define PERL_FLUSHALL_FOR_CHILD    PerlIO_flush((PerlIO*)NULL)
3041  # else
3042  #  ifdef FFLUSH_ALL
3043  #   define PERL_FLUSHALL_FOR_CHILD    my_fflush_all()
3044  #  else
3045  #   define PERL_FLUSHALL_FOR_CHILD    NOOP
3046  #  endif
3047  # endif
3048  #endif
3049  
3050  #ifndef PERL_WAIT_FOR_CHILDREN
3051  #  define PERL_WAIT_FOR_CHILDREN    NOOP
3052  #endif
3053  
3054  /* the traditional thread-unsafe notion of "current interpreter". */
3055  #ifndef PERL_SET_INTERP
3056  #  define PERL_SET_INTERP(i)        (PL_curinterp = (PerlInterpreter*)(i))
3057  #endif
3058  
3059  #ifndef PERL_GET_INTERP
3060  #  define PERL_GET_INTERP        (PL_curinterp)
3061  #endif
3062  
3063  #if defined(PERL_IMPLICIT_CONTEXT) && !defined(PERL_GET_THX)
3064  #  ifdef MULTIPLICITY
3065  #    define PERL_GET_THX        ((PerlInterpreter *)PERL_GET_CONTEXT)
3066  #  endif
3067  #  define PERL_SET_THX(t)        PERL_SET_CONTEXT(t)
3068  #endif
3069  
3070  /* 
3071      This replaces the previous %_ "hack" by the "%p" hacks.
3072      All that is required is that the perl source does not
3073      use "%-p" or "%-<number>p" or "%<number>p" formats.  
3074      These formats will still work in perl code.   
3075      See comments in sv.c for futher details.
3076  
3077      Robin Barker 2005-07-14
3078  
3079      No longer use %1p for VDf = %vd.  RMB 2007-10-19 
3080  */
3081  
3082  #ifndef SVf_
3083  #  define SVf_(n) "-" STRINGIFY(n) "p"
3084  #endif
3085  
3086  #ifndef SVf
3087  #  define SVf "-p"
3088  #endif
3089  
3090  #ifndef SVf32
3091  #  define SVf32 SVf_(32)
3092  #endif
3093  
3094  #ifndef SVf256
3095  #  define SVf256 SVf_(256)
3096  #endif
3097  
3098  #define SVfARG(p) ((void*)(p))
3099  
3100  #ifdef PERL_CORE
3101  /* not used; but needed for backward compatibilty with XS code? - RMB */ 
3102  #  undef VDf
3103  #else
3104  #  ifndef VDf
3105  #    define VDf "vd"
3106  #  endif
3107  #endif
3108  
3109  #ifdef PERL_CORE
3110  /* not used; but needed for backward compatibilty with XS code? - RMB */ 
3111  #  undef UVf
3112  #else
3113  #  ifndef UVf
3114  #    define UVf UVuf
3115  #  endif
3116  #endif
3117  
3118  #ifdef HASATTRIBUTE_FORMAT
3119  #  define __attribute__format__(x,y,z)      __attribute__((format(x,y,z)))
3120  #endif
3121  #ifdef HASATTRIBUTE_MALLOC
3122  #  define __attribute__malloc__             __attribute__((__malloc__))
3123  #endif
3124  #ifdef HASATTRIBUTE_NONNULL
3125  #  define __attribute__nonnull__(a)         __attribute__((nonnull(a)))
3126  #endif
3127  #ifdef HASATTRIBUTE_NORETURN
3128  #  define __attribute__noreturn__           __attribute__((noreturn))
3129  #endif
3130  #ifdef HASATTRIBUTE_PURE
3131  #  define __attribute__pure__               __attribute__((pure))
3132  #endif
3133  #ifdef HASATTRIBUTE_UNUSED
3134  #  define __attribute__unused__             __attribute__((unused))
3135  #endif
3136  #ifdef HASATTRIBUTE_WARN_UNUSED_RESULT
3137  #  define __attribute__warn_unused_result__ __attribute__((warn_unused_result))
3138  #endif
3139  
3140  /* If we haven't defined the attributes yet, define them to blank. */
3141  #ifndef __attribute__format__
3142  #  define __attribute__format__(x,y,z)
3143  #endif
3144  #ifndef __attribute__malloc__
3145  #  define __attribute__malloc__
3146  #endif
3147  #ifndef __attribute__nonnull__
3148  #  define __attribute__nonnull__(a)
3149  #endif
3150  #ifndef __attribute__noreturn__
3151  #  define __attribute__noreturn__
3152  #endif
3153  #ifndef __attribute__pure__
3154  #  define __attribute__pure__
3155  #endif
3156  #ifndef __attribute__unused__
3157  #  define __attribute__unused__
3158  #endif
3159  #ifndef __attribute__warn_unused_result__
3160  #  define __attribute__warn_unused_result__
3161  #endif
3162  
3163  /* For functions that are marked as __attribute__noreturn__, it's not
3164     appropriate to call return.  In either case, include the lint directive.
3165   */
3166  #ifdef HASATTRIBUTE_NORETURN
3167  #  define NORETURN_FUNCTION_END /* NOTREACHED */
3168  #else
3169  #  define NORETURN_FUNCTION_END /* NOTREACHED */ return 0
3170  #endif
3171  
3172  /* Some OS warn on NULL format to printf */
3173  #ifdef PRINTF_FORMAT_NULL_OK
3174  #  define __attribute__format__null_ok__(x,y,z)  __attribute__format__(x,y,z)
3175  #else
3176  #  define __attribute__format__null_ok__(x,y,z)  
3177  #endif
3178  
3179  #ifdef HAS_BUILTIN_EXPECT
3180  #  define EXPECT(expr,val)                  __builtin_expect(expr,val)
3181  #else
3182  #  define EXPECT(expr,val)                  (expr)
3183  #endif
3184  #define LIKELY(cond)                        EXPECT(cond,1)
3185  #define UNLIKELY(cond)                      EXPECT(cond,0)
3186  #ifdef HAS_BUILTIN_CHOOSE_EXPR
3187  /* placeholder */
3188  #endif
3189  
3190  /* Some unistd.h's give a prototype for pause() even though
3191     HAS_PAUSE ends up undefined.  This causes the #define
3192     below to be rejected by the compiler.  Sigh.
3193  */
3194  #ifdef HAS_PAUSE
3195  #define Pause    pause
3196  #else
3197  #define Pause() sleep((32767<<16)+32767)
3198  #endif
3199  
3200  #ifndef IOCPARM_LEN
3201  #   ifdef IOCPARM_MASK
3202      /* on BSDish systems we're safe */
3203  #    define IOCPARM_LEN(x)  (((x) >> 16) & IOCPARM_MASK)
3204  #   else
3205  #    if defined(_IOC_SIZE) && defined(__GLIBC__)
3206      /* on Linux systems we're safe; except when we're not [perl #38223] */
3207  #        define IOCPARM_LEN(x) (_IOC_SIZE(x) < 256 ? 256 : _IOC_SIZE(x))
3208  #    else
3209      /* otherwise guess at what's safe */
3210  #        define IOCPARM_LEN(x)    256
3211  #    endif
3212  #   endif
3213  #endif
3214  
3215  #if defined(__CYGWIN__)
3216  /* USEMYBINMODE
3217   *   This symbol, if defined, indicates that the program should
3218   *   use the routine my_binmode(FILE *fp, char iotype, int mode) to insure
3219   *   that a file is in "binary" mode -- that is, that no translation
3220   *   of bytes occurs on read or write operations.
3221   */
3222  #  define USEMYBINMODE /**/
3223  #  include <io.h> /* for setmode() prototype */
3224  #  define my_binmode(fp, iotype, mode) \
3225              (PerlLIO_setmode(fileno(fp), mode) != -1 ? TRUE : FALSE)
3226  #endif
3227  
3228  #ifdef __CYGWIN__
3229  void init_os_extras(void);
3230  #endif
3231  
3232  #ifdef UNION_ANY_DEFINITION
3233  UNION_ANY_DEFINITION;
3234  #else
3235  union any {
3236      void*    any_ptr;
3237      I32        any_i32;
3238      IV        any_iv;
3239      long    any_long;
3240      bool    any_bool;
3241      void    (*any_dptr) (void*);
3242      void    (*any_dxptr) (pTHX_ void*);
3243  };
3244  #endif
3245  
3246  typedef I32 (*filter_t) (pTHX_ int, SV *, int);
3247  
3248  #define FILTER_READ(idx, sv, len)  filter_read(idx, sv, len)
3249  #define FILTER_DATA(idx) \
3250          (PL_parser ? AvARRAY(PL_parser->rsfp_filters)[idx] : NULL)
3251  #define FILTER_ISREADER(idx) \
3252          (PL_parser && PL_parser->rsfp_filters \
3253          && idx >= AvFILLp(PL_parser->rsfp_filters))
3254  #define PERL_FILTER_EXISTS(i) \
3255          (PL_parser && PL_parser->rsfp_filters \
3256          && (i) <= av_len(PL_parser->rsfp_filters))
3257  
3258  #if defined(_AIX) && !defined(_AIX43)
3259  #if defined(USE_REENTRANT) || defined(_REENTRANT) || defined(_THREAD_SAFE)
3260  /* We cannot include <crypt.h> to get the struct crypt_data
3261   * because of setkey prototype problems when threading */
3262  typedef        struct crypt_data {     /* straight from /usr/include/crypt.h */
3263      /* From OSF, Not needed in AIX
3264         char C[28], D[28];
3265      */
3266      char E[48];
3267      char KS[16][48];
3268      char block[66];
3269      char iobuf[16];
3270  } CRYPTD;
3271  #endif /* threading */
3272  #endif /* AIX */
3273  
3274  #if !defined(OS2) && !defined(MACOS_TRADITIONAL)
3275  #  include "iperlsys.h"
3276  #endif
3277  
3278  #ifdef __LIBCATAMOUNT__
3279  #undef HAS_PASSWD  /* unixish.h but not unixish enough. */ 
3280  #undef HAS_GROUP
3281  #define FAKE_BIT_BUCKET
3282  #endif
3283  
3284  /* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0.
3285   * Note that the USE_HASH_SEED and USE_HASH_SEED_EXPLICIT are *NOT*
3286   * defined by Configure, despite their names being similar to the
3287   * other defines like USE_ITHREADS.  Configure in fact knows nothing
3288   * about the randomised hashes.  Therefore to enable/disable the hash
3289   * randomisation defines use the Configure -Accflags=... instead. */
3290  #if !defined(NO_HASH_SEED) && !defined(USE_HASH_SEED) && !defined(USE_HASH_SEED_EXPLICIT)
3291  #  define USE_HASH_SEED
3292  #endif
3293  
3294  /* Win32 defines a type 'WORD' in windef.h. This conflicts with the enumerator
3295   * 'WORD' defined in perly.h. The yytokentype enum is only a debugging aid, so
3296   * it's not really needed.
3297   */
3298  #if defined(WIN32)
3299  #  define YYTOKENTYPE
3300  #endif
3301  #include "perly.h"
3302  
3303  #ifdef PERL_MAD
3304  struct nexttoken {
3305      YYSTYPE next_val;    /* value of next token, if any */
3306      I32 next_type;    /* type of next token */
3307      MADPROP *next_mad;    /* everything else about that token */
3308  };
3309  #endif
3310  
3311  #include "regexp.h"
3312  #include "sv.h"
3313  #include "util.h"
3314  #include "form.h"
3315  #include "gv.h"
3316  #include "pad.h"
3317  #include "cv.h"
3318  #include "opnames.h"
3319  #include "op.h"
3320  #include "hv.h"
3321  #include "cop.h"
3322  #include "av.h"
3323  #include "mg.h"
3324  #include "scope.h"
3325  #include "warnings.h"
3326  #include "utf8.h"
3327  
3328  
3329  typedef struct _sublex_info SUBLEXINFO;
3330  struct _sublex_info {
3331      U8 super_state;    /* lexer state to save */
3332      U16 sub_inwhat;    /* "lex_inwhat" to use */
3333      OP *sub_op;        /* "lex_op" to use */
3334      char *super_bufptr;    /* PL_parser->bufptr that was */
3335      char *super_bufend;    /* PL_parser->bufend that was */
3336  };
3337  
3338  #include "parser.h"
3339  
3340  typedef struct magic_state MGS;    /* struct magic_state defined in mg.c */
3341  
3342  struct scan_data_t;        /* Used in S_* functions in regcomp.c */
3343  struct regnode_charclass_class;    /* Used in S_* functions in regcomp.c */
3344  
3345  /* Keep next first in this structure, because sv_free_arenas take
3346     advantage of this to share code between the pte arenas and the SV
3347     body arenas  */
3348  struct ptr_tbl_ent {
3349      struct ptr_tbl_ent*        next;
3350      const void*            oldval;
3351      void*            newval;
3352  };
3353  
3354  struct ptr_tbl {
3355      struct ptr_tbl_ent**    tbl_ary;
3356      UV                tbl_max;
3357      UV                tbl_items;
3358  };
3359  
3360  #if defined(iAPX286) || defined(M_I286) || defined(I80286)
3361  #   define I286
3362  #endif
3363  
3364  #if defined(htonl) && !defined(HAS_HTONL)
3365  #define HAS_HTONL
3366  #endif
3367  #if defined(htons) && !defined(HAS_HTONS)
3368  #define HAS_HTONS
3369  #endif
3370  #if defined(ntohl) && !defined(HAS_NTOHL)
3371  #define HAS_NTOHL
3372  #endif
3373  #if defined(ntohs) && !defined(HAS_NTOHS)
3374  #define HAS_NTOHS
3375  #endif
3376  #ifndef HAS_HTONL
3377  #if (BYTEORDER & 0xffff) != 0x4321
3378  #define HAS_HTONS
3379  #define HAS_HTONL
3380  #define HAS_NTOHS
3381  #define HAS_NTOHL
3382  #define MYSWAP
3383  #define htons my_swap
3384  #define htonl my_htonl
3385  #define ntohs my_swap
3386  #define ntohl my_ntohl
3387  #endif
3388  #else
3389  #if (BYTEORDER & 0xffff) == 0x4321
3390  #undef HAS_HTONS
3391  #undef HAS_HTONL
3392  #undef HAS_NTOHS
3393  #undef HAS_NTOHL
3394  #endif
3395  #endif
3396  
3397  /*
3398   * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
3399   * -DWS
3400   */
3401  #if BYTEORDER != 0x1234
3402  # define HAS_VTOHL
3403  # define HAS_VTOHS
3404  # define HAS_HTOVL
3405  # define HAS_HTOVS
3406  # if BYTEORDER == 0x4321 || BYTEORDER == 0x87654321
3407  #  define vtohl(x)    ((((x)&0xFF)<<24)    \
3408              +(((x)>>24)&0xFF)    \
3409              +(((x)&0x0000FF00)<<8)    \
3410              +(((x)&0x00FF0000)>>8)    )
3411  #  define vtohs(x)    ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
3412  #  define htovl(x)    vtohl(x)
3413  #  define htovs(x)    vtohs(x)
3414  # endif
3415      /* otherwise default to functions in util.c */
3416  #ifndef htovs
3417  short htovs(short n);
3418  short vtohs(short n);
3419  long htovl(long n);
3420  long vtohl(long n);
3421  #endif
3422  #endif
3423  
3424  /* *MAX Plus 1. A floating point value.
3425     Hopefully expressed in a way that dodgy floating point can't mess up.
3426     >> 2 rather than 1, so that value is safely less than I32_MAX after 1
3427     is added to it
3428     May find that some broken compiler will want the value cast to I32.
3429     [after the shift, as signed >> may not be as secure as unsigned >>]
3430  */
3431  #define I32_MAX_P1 (2.0 * (1 + (((U32)I32_MAX) >> 1)))
3432  #define U32_MAX_P1 (4.0 * (1 + ((U32_MAX) >> 2)))
3433  /* For compilers that can't correctly cast NVs over 0x7FFFFFFF (or
3434     0x7FFFFFFFFFFFFFFF) to an unsigned integer. In the future, sizeof(UV)
3435     may be greater than sizeof(IV), so don't assume that half max UV is max IV.
3436  */
3437  #define U32_MAX_P1_HALF (2.0 * (1 + ((U32_MAX) >> 2)))
3438  
3439  #define UV_MAX_P1 (4.0 * (1 + ((UV_MAX) >> 2)))
3440  #define IV_MAX_P1 (2.0 * (1 + (((UV)IV_MAX) >> 1)))
3441  #define UV_MAX_P1_HALF (2.0 * (1 + ((UV_MAX) >> 2)))
3442  
3443  /* This may look like unnecessary jumping through hoops, but converting
3444     out of range floating point values to integers *is* undefined behaviour,
3445     and it is starting to bite.
3446  */
3447  #ifndef CAST_INLINE
3448  #define I_32(what) (cast_i32((NV)(what)))
3449  #define U_32(what) (cast_ulong((NV)(what)))
3450  #define I_V(what) (cast_iv((NV)(what)))
3451  #define U_V(what) (cast_uv((NV)(what)))
3452  #else
3453  #define I_32(n) ((n) < I32_MAX_P1 ? ((n) < I32_MIN ? I32_MIN : (I32) (n)) \
3454                    : ((n) < U32_MAX_P1 ? (I32)(U32) (n) \
3455                       : ((n) > 0 ? (I32) U32_MAX : 0 /* NaN */)))
3456  #define U_32(n) ((n) < 0.0 ? ((n) < I32_MIN ? (UV) I32_MIN : (U32)(I32) (n)) \
3457                    : ((n) < U32_MAX_P1 ? (U32) (n) \
3458                       : ((n) > 0 ? U32_MAX : 0 /* NaN */)))
3459  #define I_V(n) ((n) < IV_MAX_P1 ? ((n) < IV_MIN ? IV_MIN : (IV) (n)) \
3460                    : ((n) < UV_MAX_P1 ? (IV)(UV) (n) \
3461                       : ((n) > 0 ? (IV)UV_MAX : 0 /* NaN */)))
3462  #define U_V(n) ((n) < 0.0 ? ((n) < IV_MIN ? (UV) IV_MIN : (UV)(IV) (n)) \
3463                    : ((n) < UV_MAX_P1 ? (UV) (n) \
3464                       : ((n) > 0 ? UV_MAX : 0 /* NaN */)))
3465  #endif
3466  
3467  #define U_S(what) ((U16)U_32(what))
3468  #define U_I(what) ((unsigned int)U_32(what))
3469  #define U_L(what) U_32(what)
3470  
3471  #ifdef HAS_SIGNBIT
3472  #  define Perl_signbit signbit
3473  #endif
3474  
3475  /* These do not care about the fractional part, only about the range. */
3476  #define NV_WITHIN_IV(nv) (I_V(nv) >= IV_MIN && I_V(nv) <= IV_MAX)
3477  #define NV_WITHIN_UV(nv) ((nv)>=0.0 && U_V(nv) >= UV_MIN && U_V(nv) <= UV_MAX)
3478  
3479  /* Used with UV/IV arguments: */
3480                      /* XXXX: need to speed it up */
3481  #define CLUMP_2UV(iv)    ((iv) < 0 ? 0 : (UV)(iv))
3482  #define CLUMP_2IV(uv)    ((uv) > (UV)IV_MAX ? IV_MAX : (IV)(uv))
3483  
3484  #ifndef MAXSYSFD
3485  #   define MAXSYSFD 2
3486  #endif
3487  
3488  #ifndef __cplusplus
3489  #if !(defined(UNDER_CE) || defined(SYMBIAN))
3490  Uid_t getuid (void);
3491  Uid_t geteuid (void);
3492  Gid_t getgid (void);
3493  Gid_t getegid (void);
3494  #endif
3495  #endif
3496  
3497  #ifndef Perl_debug_log
3498  #  define Perl_debug_log    PerlIO_stderr()
3499  #endif
3500  
3501  #ifndef Perl_error_log
3502  #  define Perl_error_log    (PL_stderrgv            \
3503                   && isGV(PL_stderrgv)        \
3504                   && GvIOp(PL_stderrgv)          \
3505                   && IoOFP(GvIOp(PL_stderrgv))    \
3506                   ? IoOFP(GvIOp(PL_stderrgv))    \
3507                   : PerlIO_stderr())
3508  #endif
3509  
3510  
3511  #define DEBUG_p_FLAG        0x00000001 /*      1 */
3512  #define DEBUG_s_FLAG        0x00000002 /*      2 */
3513  #define DEBUG_l_FLAG        0x00000004 /*      4 */
3514  #define DEBUG_t_FLAG        0x00000008 /*      8 */
3515  #define DEBUG_o_FLAG        0x00000010 /*     16 */
3516  #define DEBUG_c_FLAG        0x00000020 /*     32 */
3517  #define DEBUG_P_FLAG        0x00000040 /*     64 */
3518  #define DEBUG_m_FLAG        0x00000080 /*    128 */
3519  #define DEBUG_f_FLAG        0x00000100 /*    256 */
3520  #define DEBUG_r_FLAG        0x00000200 /*    512 */
3521  #define DEBUG_x_FLAG        0x00000400 /*   1024 */
3522  #define DEBUG_u_FLAG        0x00000800 /*   2048 */
3523  /* U is reserved for Unofficial, exploratory hacking */
3524  #define DEBUG_U_FLAG        0x00001000 /*   4096 */
3525  #define DEBUG_H_FLAG        0x00002000 /*   8192 */
3526  #define DEBUG_X_FLAG        0x00004000 /*  16384 */
3527  #define DEBUG_D_FLAG        0x00008000 /*  32768 */
3528  #define DEBUG_S_FLAG        0x00010000 /*  65536 */
3529  #define DEBUG_T_FLAG        0x00020000 /* 131072 */
3530  #define DEBUG_R_FLAG        0x00040000 /* 262144 */
3531  #define DEBUG_J_FLAG        0x00080000 /* 524288 */
3532  #define DEBUG_v_FLAG        0x00100000 /*1048576 */
3533  #define DEBUG_C_FLAG        0x00200000 /*2097152 */
3534  #define DEBUG_A_FLAG        0x00400000 /*4194304 */
3535  #define DEBUG_q_FLAG        0x00800000 /*8388608 */
3536  #define DEBUG_MASK        0x00FFEFFF /* mask of all the standard flags */
3537  
3538  #define DEBUG_DB_RECURSE_FLAG    0x40000000
3539  #define DEBUG_TOP_FLAG        0x80000000 /* XXX what's this for ??? Signal
3540                            that something was done? */
3541  
3542  #  define DEBUG_p_TEST_ (PL_debug & DEBUG_p_FLAG)
3543  #  define DEBUG_s_TEST_ (PL_debug & DEBUG_s_FLAG)
3544  #  define DEBUG_l_TEST_ (PL_debug & DEBUG_l_FLAG)
3545  #  define DEBUG_t_TEST_ (PL_debug & DEBUG_t_FLAG)
3546  #  define DEBUG_o_TEST_ (PL_debug & DEBUG_o_FLAG)
3547  #  define DEBUG_c_TEST_ (PL_debug & DEBUG_c_FLAG)
3548  #  define DEBUG_P_TEST_ (PL_debug & DEBUG_P_FLAG)
3549  #  define DEBUG_m_TEST_ (PL_debug & DEBUG_m_FLAG)
3550  #  define DEBUG_f_TEST_ (PL_debug & DEBUG_f_FLAG)
3551  #  define DEBUG_r_TEST_ (PL_debug & DEBUG_r_FLAG)
3552  #  define DEBUG_x_TEST_ (PL_debug & DEBUG_x_FLAG)
3553  #  define DEBUG_u_TEST_ (PL_debug & DEBUG_u_FLAG)
3554  #  define DEBUG_U_TEST_ (PL_debug & DEBUG_U_FLAG)
3555  #  define DEBUG_H_TEST_ (PL_debug & DEBUG_H_FLAG)
3556  #  define DEBUG_X_TEST_ (PL_debug & DEBUG_X_FLAG)
3557  #  define DEBUG_D_TEST_ (PL_debug & DEBUG_D_FLAG)
3558  #  define DEBUG_S_TEST_ (PL_debug & DEBUG_S_FLAG)
3559  #  define DEBUG_T_TEST_ (PL_debug & DEBUG_T_FLAG)
3560  #  define DEBUG_R_TEST_ (PL_debug & DEBUG_R_FLAG)
3561  #  define DEBUG_J_TEST_ (PL_debug & DEBUG_J_FLAG)
3562  #  define DEBUG_v_TEST_ (PL_debug & DEBUG_v_FLAG)
3563  #  define DEBUG_C_TEST_ (PL_debug & DEBUG_C_FLAG)
3564  #  define DEBUG_A_TEST_ (PL_debug & DEBUG_A_FLAG)
3565  #  define DEBUG_q_TEST_ (PL_debug & DEBUG_q_FLAG)
3566  #  define DEBUG_Xv_TEST_ (DEBUG_X_TEST_ && DEBUG_v_TEST_)
3567  #  define DEBUG_Uv_TEST_ (DEBUG_U_TEST_ && DEBUG_v_TEST_)
3568  
3569  #ifdef DEBUGGING
3570  
3571  #  define DEBUG_p_TEST DEBUG_p_TEST_
3572  #  define DEBUG_s_TEST DEBUG_s_TEST_
3573  #  define DEBUG_l_TEST DEBUG_l_TEST_
3574  #  define DEBUG_t_TEST DEBUG_t_TEST_
3575  #  define DEBUG_o_TEST DEBUG_o_TEST_
3576  #  define DEBUG_c_TEST DEBUG_c_TEST_
3577  #  define DEBUG_P_TEST DEBUG_P_TEST_
3578  #  define DEBUG_m_TEST DEBUG_m_TEST_
3579  #  define DEBUG_f_TEST DEBUG_f_TEST_
3580  #  define DEBUG_r_TEST DEBUG_r_TEST_
3581  #  define DEBUG_x_TEST DEBUG_x_TEST_
3582  #  define DEBUG_u_TEST DEBUG_u_TEST_
3583  #  define DEBUG_U_TEST DEBUG_U_TEST_
3584  #  define DEBUG_H_TEST DEBUG_H_TEST_
3585  #  define DEBUG_X_TEST DEBUG_X_TEST_
3586  #  define DEBUG_D_TEST DEBUG_D_TEST_
3587  #  define DEBUG_S_TEST DEBUG_S_TEST_
3588  #  define DEBUG_T_TEST DEBUG_T_TEST_
3589  #  define DEBUG_R_TEST DEBUG_R_TEST_
3590  #  define DEBUG_J_TEST DEBUG_J_TEST_
3591  #  define DEBUG_v_TEST DEBUG_v_TEST_
3592  #  define DEBUG_C_TEST DEBUG_C_TEST_
3593  #  define DEBUG_A_TEST DEBUG_A_TEST_
3594  #  define DEBUG_q_TEST DEBUG_q_TEST_
3595  #  define DEBUG_Xv_TEST DEBUG_Xv_TEST_
3596  #  define DEBUG_Uv_TEST DEBUG_Uv_TEST_
3597  
3598  #  define PERL_DEB(a)                  a
3599  #  define PERL_DEBUG(a) if (PL_debug)  a
3600  #  define DEBUG_p(a) if (DEBUG_p_TEST) a
3601  #  define DEBUG_s(a) if (DEBUG_s_TEST) a
3602  #  define DEBUG_l(a) if (DEBUG_l_TEST) a
3603  #  define DEBUG_t(a) if (DEBUG_t_TEST) a
3604  #  define DEBUG_o(a) if (DEBUG_o_TEST) a
3605  #  define DEBUG_c(a) if (DEBUG_c_TEST) a
3606  #  define DEBUG_P(a) if (DEBUG_P_TEST) a
3607  
3608       /* Temporarily turn off memory debugging in case the a
3609        * does memory allocation, either directly or indirectly. */
3610  #  define DEBUG_m(a)  \
3611      STMT_START {                            \
3612          if (PERL_GET_INTERP) { dTHX; if (DEBUG_m_TEST) {PL_debug&=~DEBUG_m_FLAG; a; PL_debug|=DEBUG_m_FLAG;} } \
3613      } STMT_END
3614  
3615  #  define DEBUG__(t, a) \
3616      STMT_START { \
3617          if (t) STMT_START {a;} STMT_END; \
3618      } STMT_END
3619  
3620  #  define DEBUG_f(a) DEBUG__(DEBUG_f_TEST, a)
3621  #ifndef PERL_EXT_RE_BUILD
3622  #  define DEBUG_r(a) DEBUG__(DEBUG_r_TEST, a)
3623  #else
3624  #  define DEBUG_r(a) STMT_START {a;} STMT_END
3625  #endif /* PERL_EXT_RE_BUILD */
3626  #  define DEBUG_x(a) DEBUG__(DEBUG_x_TEST, a)
3627  #  define DEBUG_u(a) DEBUG__(DEBUG_u_TEST, a)
3628  #  define DEBUG_U(a) DEBUG__(DEBUG_U_TEST, a)
3629  #  define DEBUG_H(a) DEBUG__(DEBUG_H_TEST, a)
3630  #  define DEBUG_X(a) DEBUG__(DEBUG_X_TEST, a)
3631  #  define DEBUG_D(a) DEBUG__(DEBUG_D_TEST, a)
3632  #  define DEBUG_Xv(a) DEBUG__(DEBUG_Xv_TEST, a)
3633  #  define DEBUG_Uv(a) DEBUG__(DEBUG_Uv_TEST, a)
3634  
3635  #  define DEBUG_S(a)
3636  
3637  #  define DEBUG_T(a) DEBUG__(DEBUG_T_TEST, a)
3638  #  define DEBUG_R(a) DEBUG__(DEBUG_R_TEST, a)
3639  #  define DEBUG_v(a) DEBUG__(DEBUG_v_TEST, a)
3640  #  define DEBUG_C(a) DEBUG__(DEBUG_C_TEST, a)
3641  #  define DEBUG_A(a) DEBUG__(DEBUG_A_TEST, a)
3642  #  define DEBUG_q(a) DEBUG__(DEBUG_q_TEST, a)
3643  
3644  #else /* DEBUGGING */
3645  
3646  #  define DEBUG_p_TEST (0)
3647  #  define DEBUG_s_TEST (0)
3648  #  define DEBUG_l_TEST (0)
3649  #  define DEBUG_t_TEST (0)
3650  #  define DEBUG_o_TEST (0)
3651  #  define DEBUG_c_TEST (0)
3652  #  define DEBUG_P_TEST (0)
3653  #  define DEBUG_m_TEST (0)
3654  #  define DEBUG_f_TEST (0)
3655  #  define DEBUG_r_TEST (0)
3656  #  define DEBUG_x_TEST (0)
3657  #  define DEBUG_u_TEST (0)
3658  #  define DEBUG_U_TEST (0)
3659  #  define DEBUG_H_TEST (0)
3660  #  define DEBUG_X_TEST (0)
3661  #  define DEBUG_D_TEST (0)
3662  #  define DEBUG_S_TEST (0)
3663  #  define DEBUG_T_TEST (0)
3664  #  define DEBUG_R_TEST (0)
3665  #  define DEBUG_J_TEST (0)
3666  #  define DEBUG_v_TEST (0)
3667  #  define DEBUG_C_TEST (0)
3668  #  define DEBUG_A_TEST (0)
3669  #  define DEBUG_q_TEST (0)
3670  #  define DEBUG_Xv_TEST (0)
3671  #  define DEBUG_Uv_TEST (0)
3672  
3673  #  define PERL_DEB(a)
3674  #  define PERL_DEBUG(a)
3675  #  define DEBUG_p(a)
3676  #  define DEBUG_s(a)
3677  #  define DEBUG_l(a)
3678  #  define DEBUG_t(a)
3679  #  define DEBUG_o(a)
3680  #  define DEBUG_c(a)
3681  #  define DEBUG_P(a)
3682  #  define DEBUG_m(a)
3683  #  define DEBUG_f(a)
3684  #  define DEBUG_r(a)
3685  #  define DEBUG_x(a)
3686  #  define DEBUG_u(a)
3687  #  define DEBUG_U(a)
3688  #  define DEBUG_H(a)
3689  #  define DEBUG_X(a)
3690  #  define DEBUG_D(a)
3691  #  define DEBUG_S(a)
3692  #  define DEBUG_T(a)
3693  #  define DEBUG_R(a)
3694  #  define DEBUG_v(a)
3695  #  define DEBUG_C(a)
3696  #  define DEBUG_A(a)
3697  #  define DEBUG_q(a)
3698  #  define DEBUG_Xv(a)
3699  #  define DEBUG_Uv(a)
3700  #endif /* DEBUGGING */
3701  
3702  
3703  #define DEBUG_SCOPE(where) \
3704      DEBUG_l(WITH_THR(Perl_deb(aTHX_ "%s scope %ld at %s:%d\n",    \
3705              where, (long)PL_scopestack_ix, __FILE__, __LINE__)));
3706  
3707  
3708  
3709  
3710  /* These constants should be used in preference to raw characters
3711   * when using magic. Note that some perl guts still assume
3712   * certain character properties of these constants, namely that
3713   * isUPPER() and toLOWER() may do useful mappings.
3714   *
3715   * Update the magic_names table in dump.c when adding/amending these
3716   */
3717  
3718  #define PERL_MAGIC_sv          '\0' /* Special scalar variable */
3719  #define PERL_MAGIC_overload      'A' /* %OVERLOAD hash */
3720  #define PERL_MAGIC_overload_elem  'a' /* %OVERLOAD hash element */
3721  #define PERL_MAGIC_overload_table 'c' /* Holds overload table (AMT) on stash */
3722  #define PERL_MAGIC_bm          'B' /* Boyer-Moore (fast string search) */
3723  #define PERL_MAGIC_regdata      'D' /* Regex match position data
3724                      (@+ and @- vars) */
3725  #define PERL_MAGIC_regdatum      'd' /* Regex match position data element */
3726  #define PERL_MAGIC_env          'E' /* %ENV hash */
3727  #define PERL_MAGIC_envelem      'e' /* %ENV hash element */
3728  #define PERL_MAGIC_fm          'f' /* Formline ('compiled' format) */
3729  #define PERL_MAGIC_regex_global      'g' /* m//g target / study()ed string */
3730  #define PERL_MAGIC_hints      'H' /* %^H hash */
3731  #define PERL_MAGIC_hintselem      'h' /* %^H hash element */
3732  #define PERL_MAGIC_isa          'I' /* @ISA array */
3733  #define PERL_MAGIC_isaelem      'i' /* @ISA array element */
3734  #define PERL_MAGIC_nkeys      'k' /* scalar(keys()) lvalue */
3735  #define PERL_MAGIC_dbfile      'L' /* Debugger %_<filename */
3736  #define PERL_MAGIC_dbline      'l' /* Debugger %_<filename element */
3737  #define PERL_MAGIC_shared      'N' /* Shared between threads */
3738  #define PERL_MAGIC_shared_scalar  'n' /* Shared between threads */
3739  #define PERL_MAGIC_collxfrm      'o' /* Locale transformation */
3740  #define PERL_MAGIC_tied          'P' /* Tied array or hash */
3741  #define PERL_MAGIC_tiedelem      'p' /* Tied array or hash element */
3742  #define PERL_MAGIC_tiedscalar      'q' /* Tied scalar or handle */
3743  #define PERL_MAGIC_qr          'r' /* precompiled qr// regex */
3744  #define PERL_MAGIC_sig          'S' /* %SIG hash */
3745  #define PERL_MAGIC_sigelem      's' /* %SIG hash element */
3746  #define PERL_MAGIC_taint      't' /* Taintedness */
3747  #define PERL_MAGIC_uvar          'U' /* Available for use by extensions */
3748  #define PERL_MAGIC_uvar_elem      'u' /* Reserved for use by extensions */
3749  #define PERL_MAGIC_vec          'v' /* vec() lvalue */
3750  #define PERL_MAGIC_vstring      'V' /* SV was vstring literal */
3751  #define PERL_MAGIC_utf8          'w' /* Cached UTF-8 information */
3752  #define PERL_MAGIC_substr      'x' /* substr() lvalue */
3753  #define PERL_MAGIC_defelem      'y' /* Shadow "foreach" iterator variable /
3754                      smart parameter vivification */
3755  #define PERL_MAGIC_arylen      '#' /* Array length ($#ary) */
3756  #define PERL_MAGIC_pos          '.' /* pos() lvalue */
3757  #define PERL_MAGIC_backref      '<' /* for weak ref data */
3758  #define PERL_MAGIC_symtab      ':' /* extra data for symbol tables */
3759  #define PERL_MAGIC_rhash      '%' /* extra data for restricted hashes */
3760  #define PERL_MAGIC_arylen_p      '@' /* to move arylen out of XPVAV */
3761  #define PERL_MAGIC_ext          '~' /* Available for use by extensions */
3762  
3763  
3764  #ifndef assert  /* <assert.h> might have been included somehow */
3765  #define assert(what)    PERL_DEB(                     \
3766      ((what) ? ((void) 0) :                        \
3767          (Perl_croak_nocontext("Assertion %s failed: file \"" __FILE__ \
3768              "\", line %d", STRINGIFY(what), __LINE__),    \
3769          (void) 0)))
3770  #endif
3771  
3772  struct ufuncs {
3773      I32 (*uf_val)(pTHX_ IV, SV*);
3774      I32 (*uf_set)(pTHX_ IV, SV*);
3775      IV uf_index;
3776  };
3777  
3778  /* In pre-5.7-Perls the PERL_MAGIC_uvar magic didn't get the thread context.
3779   * XS code wanting to be backward compatible can do something
3780   * like the following:
3781  
3782  #ifndef PERL_MG_UFUNC
3783  #define PERL_MG_UFUNC(name,ix,sv) I32 name(IV ix, SV *sv)
3784  #endif
3785  
3786  static PERL_MG_UFUNC(foo_get, index, val)
3787  {
3788      sv_setsv(val, ...);
3789      return TRUE;
3790  }
3791  
3792  -- Doug MacEachern
3793  
3794  */
3795  
3796  #ifndef PERL_MG_UFUNC
3797  #define PERL_MG_UFUNC(name,ix,sv) I32 name(pTHX_ IV ix, SV *sv)
3798  #endif
3799  
3800  /* Fix these up for __STDC__ */
3801  #ifndef DONT_DECLARE_STD
3802  char *mktemp (char*);
3803  #ifndef atof
3804  double atof (const char*);
3805  #endif
3806  #endif
3807  
3808  #ifndef STANDARD_C
3809  /* All of these are in stdlib.h or time.h for ANSI C */
3810  Time_t time();
3811  struct tm *gmtime(), *localtime();
3812  #if defined(OEMVS) || defined(__OPEN_VM)
3813  char *(strchr)(), *(strrchr)();
3814  char *(strcpy)(), *(strcat)();
3815  #else
3816  char *strchr(), *strrchr();
3817  char *strcpy(), *strcat();
3818  #endif
3819  #endif /* ! STANDARD_C */
3820  
3821  
3822  #ifdef I_MATH
3823  #    include <math.h>
3824  #else
3825  START_EXTERN_C
3826          double exp (double);
3827          double log (double);
3828          double log10 (double);
3829          double sqrt (double);
3830          double frexp (double,int*);
3831          double ldexp (double,int);
3832          double modf (double,double*);
3833          double sin (double);
3834          double cos (double);
3835          double atan2 (double,double);
3836          double pow (double,double);
3837  END_EXTERN_C
3838  #endif
3839  
3840  #if !defined(NV_INF) && defined(USE_LONG_DOUBLE) && defined(LDBL_INFINITY)
3841  #  define NV_INF LDBL_INFINITY
3842  #endif
3843  #if !defined(NV_INF) && defined(DBL_INFINITY)
3844  #  define NV_INF (NV)DBL_INFINITY
3845  #endif
3846  #if !defined(NV_INF) && defined(INFINITY)
3847  #  define NV_INF (NV)INFINITY
3848  #endif
3849  #if !defined(NV_INF) && defined(INF)
3850  #  define NV_INF (NV)INF
3851  #endif
3852  #if !defined(NV_INF) && defined(USE_LONG_DOUBLE) && defined(HUGE_VALL)
3853  #  define NV_INF (NV)HUGE_VALL
3854  #endif
3855  #if !defined(NV_INF) && defined(HUGE_VAL)
3856  #  define NV_INF (NV)HUGE_VAL
3857  #endif
3858  
3859  #if !defined(NV_NAN) && defined(USE_LONG_DOUBLE)
3860  #   if !defined(NV_NAN) && defined(LDBL_NAN)
3861  #       define NV_NAN LDBL_NAN
3862  #   endif
3863  #   if !defined(NV_NAN) && defined(LDBL_QNAN)
3864  #       define NV_NAN LDBL_QNAN
3865  #   endif
3866  #   if !defined(NV_NAN) && defined(LDBL_SNAN)
3867  #       define NV_NAN LDBL_SNAN
3868  #   endif
3869  #endif
3870  #if !defined(NV_NAN) && defined(DBL_NAN)
3871  #  define NV_NAN (NV)DBL_NAN
3872  #endif
3873  #if !defined(NV_NAN) && defined(DBL_QNAN)
3874  #  define NV_NAN (NV)DBL_QNAN
3875  #endif
3876  #if !defined(NV_NAN) && defined(DBL_SNAN)
3877  #  define NV_NAN (NV)DBL_SNAN
3878  #endif
3879  #if !defined(NV_NAN) && defined(QNAN)
3880  #  define NV_NAN (NV)QNAN
3881  #endif
3882  #if !defined(NV_NAN) && defined(SNAN)
3883  #  define NV_NAN (NV)SNAN
3884  #endif
3885  #if !defined(NV_NAN) && defined(NAN)
3886  #  define NV_NAN (NV)NAN
3887  #endif
3888  
3889  #ifndef __cplusplus
3890  #  if defined(NeXT) || defined(__NeXT__) /* or whatever catches all NeXTs */
3891  char *crypt ();       /* Maybe more hosts will need the unprototyped version */
3892  #  else
3893  #    if !defined(WIN32) && !defined(VMS)
3894  #ifndef crypt
3895  char *crypt (const char*, const char*);
3896  #endif
3897  #    endif /* !WIN32 */
3898  #  endif /* !NeXT && !__NeXT__ */
3899  #  ifndef DONT_DECLARE_STD
3900  #    ifndef getenv
3901  char *getenv (const char*);
3902  #    endif /* !getenv */
3903  #    if !defined(HAS_LSEEK_PROTO) && !defined(EPOC) && !defined(__hpux)
3904  #      ifdef _FILE_OFFSET_BITS
3905  #        if _FILE_OFFSET_BITS == 64
3906  Off_t lseek (int,Off_t,int);
3907  #        endif
3908  #      endif
3909  #    endif
3910  #  endif /* !DONT_DECLARE_STD */
3911  #ifndef getlogin
3912  char *getlogin (void);
3913  #endif
3914  #endif /* !__cplusplus */
3915  
3916  /* Fixme on VMS.  This needs to be a run-time, not build time options */
3917  /* Also rename() is affected by this */
3918  #ifdef UNLINK_ALL_VERSIONS /* Currently only makes sense for VMS */
3919  #define UNLINK unlnk
3920  I32 unlnk (pTHX_ const char*);
3921  #else
3922  #define UNLINK PerlLIO_unlink
3923  #endif
3924  
3925  /* some versions of glibc are missing the setresuid() proto */
3926  #if defined(HAS_SETRESUID) && !defined(HAS_SETRESUID_PROTO)
3927  int setresuid(uid_t ruid, uid_t euid, uid_t suid);
3928  #endif
3929  /* some versions of glibc are missing the setresgid() proto */
3930  #if defined(HAS_SETRESGID) && !defined(HAS_SETRESGID_PROTO)
3931  int setresgid(gid_t rgid, gid_t egid, gid_t sgid);
3932  #endif
3933  
3934  #ifndef HAS_SETREUID
3935  #  ifdef HAS_SETRESUID
3936  #    define setreuid(r,e) setresuid(r,e,(Uid_t)-1)
3937  #    define HAS_SETREUID
3938  #  endif
3939  #endif
3940  #ifndef HAS_SETREGID
3941  #  ifdef HAS_SETRESGID
3942  #    define setregid(r,e) setresgid(r,e,(Gid_t)-1)
3943  #    define HAS_SETREGID
3944  #  endif
3945  #endif
3946  
3947  /* Sighandler_t defined in iperlsys.h */
3948  
3949  #ifdef HAS_SIGACTION
3950  typedef struct sigaction Sigsave_t;
3951  #else
3952  typedef Sighandler_t Sigsave_t;
3953  #endif
3954  
3955  #define SCAN_DEF 0
3956  #define SCAN_TR 1
3957  #define SCAN_REPL 2
3958  
3959  #ifdef DEBUGGING
3960  # ifndef register
3961  #  define register
3962  # endif
3963  # define RUNOPS_DEFAULT Perl_runops_debug
3964  #else
3965  # define RUNOPS_DEFAULT Perl_runops_standard
3966  #endif
3967  
3968  #ifdef USE_PERLIO
3969  EXTERN_C void PerlIO_teardown();
3970  # ifdef USE_ITHREADS
3971  #  define PERLIO_INIT MUTEX_INIT(&PL_perlio_mutex)
3972  #  define PERLIO_TERM                 \
3973      STMT_START {                \
3974          PerlIO_teardown();        \
3975          MUTEX_DESTROY(&PL_perlio_mutex);\
3976      } STMT_END
3977  # else
3978  #  define PERLIO_INIT
3979  #  define PERLIO_TERM    PerlIO_teardown()
3980  # endif
3981  #else
3982  #  define PERLIO_INIT
3983  #  define PERLIO_TERM
3984  #endif
3985  
3986  #ifdef MYMALLOC
3987  #  ifdef MUTEX_INIT_CALLS_MALLOC
3988  #    define MALLOC_INIT                    \
3989      STMT_START {                    \
3990          PL_malloc_mutex = NULL;            \
3991          MUTEX_INIT(&PL_malloc_mutex);        \
3992      } STMT_END
3993  #    define MALLOC_TERM                    \
3994      STMT_START {                    \
3995          perl_mutex tmp = PL_malloc_mutex;    \
3996          PL_malloc_mutex = NULL;            \
3997          MUTEX_DESTROY(&tmp);            \
3998      } STMT_END
3999  #  else
4000  #    define MALLOC_INIT MUTEX_INIT(&PL_malloc_mutex)
4001  #    define MALLOC_TERM MUTEX_DESTROY(&PL_malloc_mutex)
4002  #  endif
4003  #else
4004  #  define MALLOC_INIT
4005  #  define MALLOC_TERM
4006  #endif
4007  
4008  #if defined(PERL_IMPLICIT_CONTEXT)
4009  
4010  struct perl_memory_debug_header;
4011  struct perl_memory_debug_header {
4012    tTHX    interpreter;
4013  #  ifdef PERL_POISON
4014    MEM_SIZE size;
4015  #  endif
4016    struct perl_memory_debug_header *prev;
4017    struct perl_memory_debug_header *next;
4018  };
4019  
4020  #  define sTHX    (sizeof(struct perl_memory_debug_header) + \
4021      (MEM_ALIGNBYTES - sizeof(struct perl_memory_debug_header) \
4022       %MEM_ALIGNBYTES) % MEM_ALIGNBYTES)
4023  
4024  #endif
4025  
4026  #ifdef PERL_TRACK_MEMPOOL
4027  #  define INIT_TRACK_MEMPOOL(header, interp)            \
4028      STMT_START {                        \
4029          (header).interpreter = (interp);        \
4030          (header).prev = (header).next = &(header);    \
4031      } STMT_END
4032  #  else
4033  #  define INIT_TRACK_MEMPOOL(header, interp)
4034  #endif
4035  
4036  
4037  typedef int (CPERLscope(*runops_proc_t)) (pTHX);
4038  typedef void (CPERLscope(*share_proc_t)) (pTHX_ SV *sv);
4039  typedef int  (CPERLscope(*thrhook_proc_t)) (pTHX);
4040  typedef OP* (CPERLscope(*PPADDR_t)[]) (pTHX);
4041  typedef bool (CPERLscope(*destroyable_proc_t)) (pTHX_ SV *sv);
4042  
4043  /* _ (for $_) must be first in the following list (DEFSV requires it) */
4044  #define THREADSV_NAMES "_123456789&`'+/.,\\\";^-%=|~:\001\005!@"
4045  
4046  /* NeXT has problems with crt0.o globals */
4047  #if defined(__DYNAMIC__) && \
4048      (defined(NeXT) || defined(__NeXT__) || defined(PERL_DARWIN))
4049  #  if defined(NeXT) || defined(__NeXT)
4050  #    include <mach-o/dyld.h>
4051  #    define environ (*environ_pointer)
4052  EXT char *** environ_pointer;
4053  #  else
4054  #    if defined(PERL_DARWIN) && defined(PERL_CORE)
4055  #      include <crt_externs.h>    /* for the env array */
4056  #      define environ (*_NSGetEnviron())
4057  #    endif
4058  #  endif
4059  #else
4060     /* VMS and some other platforms don't use the environ array */
4061  #  ifdef USE_ENVIRON_ARRAY
4062  #    if !defined(DONT_DECLARE_STD) || \
4063          (defined(__svr4__) && defined(__GNUC__) && defined(sun)) || \
4064          defined(__sgi) || \
4065          defined(__DGUX)
4066  extern char **    environ;    /* environment variables supplied via exec */
4067  #    endif
4068  #  endif
4069  #endif
4070  
4071  START_EXTERN_C
4072  
4073  /* handy constants */
4074  EXTCONST char PL_warn_uninit[]
4075    INIT("Use of uninitialized value%s%s%s");
4076  EXTCONST char PL_warn_nosemi[]
4077    INIT("Semicolon seems to be missing");
4078  EXTCONST char PL_warn_reserved[]
4079    INIT("Unquoted string \"%s\" may clash with future reserved word");
4080  EXTCONST char PL_warn_nl[]
4081    INIT("Unsuccessful %s on filename containing newline");
4082  EXTCONST char PL_no_wrongref[]
4083    INIT("Can't use %s ref as %s ref");
4084  EXTCONST char PL_no_symref[]
4085    INIT("Can't use string (\"%.32s\") as %s ref while \"strict refs\" in use");
4086  EXTCONST char PL_no_symref_sv[]
4087    INIT("Can't use string (\"%" SVf32 "\") as %s ref while \"strict refs\" in use");
4088  EXTCONST char PL_no_usym[]
4089    INIT("Can't use an undefined value as %s reference");
4090  EXTCONST char PL_no_aelem[]
4091    INIT("Modification of non-creatable array value attempted, subscript %d");
4092  EXTCONST char PL_no_helem_sv[]
4093    INIT("Modification of non-creatable hash value attempted, subscript \"%"SVf"\"");
4094  EXTCONST char PL_no_modify[]
4095    INIT("Modification of a read-only value attempted");
4096  EXTCONST char PL_no_mem[]
4097    INIT("Out of memory!\n");
4098  EXTCONST char PL_no_security[]
4099    INIT("Insecure dependency in %s%s");
4100  EXTCONST char PL_no_sock_func[]
4101    INIT("Unsupported socket function \"%s\" called");
4102  EXTCONST char PL_no_dir_func[]
4103    INIT("Unsupported directory function \"%s\" called");
4104  EXTCONST char PL_no_func[]
4105    INIT("The %s function is unimplemented");
4106  EXTCONST char PL_no_myglob[]
4107    INIT("\"%s\" variable %s can't be in a package");
4108  EXTCONST char PL_no_localize_ref[]
4109    INIT("Can't localize through a reference");
4110  EXTCONST char PL_memory_wrap[]
4111    INIT("panic: memory wrap");
4112  
4113  #ifdef CSH
4114  EXTCONST char PL_cshname[]
4115    INIT(CSH);
4116  #  define PL_cshlen    (sizeof(CSH "") - 1)
4117  #endif
4118  
4119  EXTCONST char PL_uuemap[65]
4120    INIT("`!\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_");
4121  
4122  #ifdef DOINIT
4123  EXTCONST char PL_uudmap[256] =
4124  #include "uudmap.h"
4125  ;
4126  EXTCONST char* const PL_sig_name[] = { SIG_NAME };
4127  EXTCONST int         PL_sig_num[]  = { SIG_NUM };
4128  #else
4129  EXTCONST char PL_uudmap[256];
4130  EXTCONST char* const PL_sig_name[];
4131  EXTCONST int         PL_sig_num[];
4132  #endif
4133  
4134  /* fast conversion and case folding tables */
4135  
4136  #ifdef DOINIT
4137  #ifdef EBCDIC
4138  EXTCONST unsigned char PL_fold[] = { /* fast EBCDIC case folding table */
4139      0,      1,      2,      3,      4,      5,      6,      7,
4140      8,      9,      10,     11,     12,     13,     14,     15,
4141      16,     17,     18,     19,     20,     21,     22,     23,
4142      24,     25,     26,     27,     28,     29,     30,     31,
4143      32,     33,     34,     35,     36,     37,     38,     39,
4144      40,     41,     42,     43,     44,     45,     46,     47,
4145      48,     49,     50,     51,     52,     53,     54,     55,
4146      56,     57,     58,     59,     60,     61,     62,     63,
4147      64,     65,     66,     67,     68,     69,     70,     71,
4148      72,     73,     74,     75,     76,     77,     78,     79,
4149      80,     81,     82,     83,     84,     85,     86,     87,
4150      88,     89,     90,     91,     92,     93,     94,     95,
4151      96,     97,     98,     99,     100,    101,    102,    103,
4152      104,    105,    106,    107,    108,    109,    110,    111,
4153      112,    113,    114,    115,    116,    117,    118,    119,
4154      120,    121,    122,    123,    124,    125,    126,    127,
4155      128,    'A',    'B',    'C',    'D',    'E',    'F',    'G',
4156      'H',    'I',    138,    139,    140,    141,    142,    143,
4157      144,    'J',    'K',    'L',    'M',    'N',    'O',    'P',
4158      'Q',    'R',    154,    155,    156,    157,    158,    159,
4159      160,    161,    'S',    'T',    'U',    'V',    'W',    'X',
4160      'Y',    'Z',    170,    171,    172,    173,    174,    175,
4161      176,    177,    178,    179,    180,    181,    182,    183,
4162      184,    185,    186,    187,    188,    189,    190,    191,
4163      192,    'a',    'b',    'c',    'd',    'e',    'f',    'g',
4164      'h',    'i',    202,    203,    204,    205,    206,    207,
4165      208,    'j',    'k',    'l',    'm',    'n',    'o',    'p',
4166      'q',    'r',    218,    219,    220,    221,    222,    223,
4167      224,    225,    's',    't',    'u',    'v',    'w',    'x',
4168      'y',    'z',    234,    235,    236,    237,    238,    239,
4169      240,    241,    242,    243,    244,    245,    246,    247,
4170      248,    249,    250,    251,    252,    253,    254,    255
4171  };
4172  #else   /* ascii rather than ebcdic */
4173  EXTCONST  unsigned char PL_fold[] = {
4174      0,    1,    2,    3,    4,    5,    6,    7,
4175      8,    9,    10,    11,    12,    13,    14,    15,
4176      16,    17,    18,    19,    20,    21,    22,    23,
4177      24,    25,    26,    27,    28,    29,    30,    31,
4178      32,    33,    34,    35,    36,    37,    38,    39,
4179      40,    41,    42,    43,    44,    45,    46,    47,
4180      48,    49,    50,    51,    52,    53,    54,    55,
4181      56,    57,    58,    59,    60,    61,    62,    63,
4182      64,    'a',    'b',    'c',    'd',    'e',    'f',    'g',
4183      'h',    'i',    'j',    'k',    'l',    'm',    'n',    'o',
4184      'p',    'q',    'r',    's',    't',    'u',    'v',    'w',
4185      'x',    'y',    'z',    91,    92,    93,    94,    95,
4186      96,    'A',    'B',    'C',    'D',    'E',    'F',    'G',
4187      'H',    'I',    'J',    'K',    'L',    'M',    'N',    'O',
4188      'P',    'Q',    'R',    'S',    'T',    'U',    'V',    'W',
4189      'X',    'Y',    'Z',    123,    124,    125,    126,    127,
4190      128,    129,    130,    131,    132,    133,    134,    135,
4191      136,    137,    138,    139,    140,    141,    142,    143,
4192      144,    145,    146,    147,    148,    149,    150,    151,
4193      152,    153,    154,    155,    156,    157,    158,    159,
4194      160,    161,    162,    163,    164,    165,    166,    167,
4195      168,    169,    170,    171,    172,    173,    174,    175,
4196      176,    177,    178,    179,    180,    181,    182,    183,
4197      184,    185,    186,    187,    188,    189,    190,    191,
4198      192,    193,    194,    195,    196,    197,    198,    199,
4199      200,    201,    202,    203,    204,    205,    206,    207,
4200      208,    209,    210,    211,    212,    213,    214,    215,
4201      216,    217,    218,    219,    220,    221,    222,    223,    
4202      224,    225,    226,    227,    228,    229,    230,    231,
4203      232,    233,    234,    235,    236,    237,    238,    239,
4204      240,    241,    242,    243,    244,    245,    246,    247,
4205      248,    249,    250,    251,    252,    253,    254,    255
4206  };
4207  #endif  /* !EBCDIC */
4208  #else
4209  EXTCONST unsigned char PL_fold[];
4210  #endif
4211  
4212  #ifndef PERL_GLOBAL_STRUCT /* or perlvars.h */
4213  #ifdef DOINIT
4214  EXT unsigned char PL_fold_locale[] = { /* Unfortunately not EXTCONST. */
4215      0,    1,    2,    3,    4,    5,    6,    7,
4216      8,    9,    10,    11,    12,    13,    14,    15,
4217      16,    17,    18,    19,    20,    21,    22,    23,
4218      24,    25,    26,    27,    28,    29,    30,    31,
4219      32,    33,    34,    35,    36,    37,    38,    39,
4220      40,    41,    42,    43,    44,    45,    46,    47,
4221      48,    49,    50,    51,    52,    53,    54,    55,
4222      56,    57,    58,    59,    60,    61,    62,    63,
4223      64,    'a',    'b',    'c',    'd',    'e',    'f',    'g',
4224      'h',    'i',    'j',    'k',    'l',    'm',    'n',    'o',
4225      'p',    'q',    'r',    's',    't',    'u',    'v',    'w',
4226      'x',    'y',    'z',    91,    92,    93,    94,    95,
4227      96,    'A',    'B',    'C',    'D',    'E',    'F',    'G',
4228      'H',    'I',    'J',    'K',    'L',    'M',    'N',    'O',
4229      'P',    'Q',    'R',    'S',    'T',    'U',    'V',    'W',
4230      'X',    'Y',    'Z',    123,    124,    125,    126,    127,
4231      128,    129,    130,    131,    132,    133,    134,    135,
4232      136,    137,    138,    139,    140,    141,    142,    143,
4233      144,    145,    146,    147,    148,    149,    150,    151,
4234      152,    153,    154,    155,    156,    157,    158,    159,
4235      160,    161,    162,    163,    164,    165,    166,    167,
4236      168,    169,    170,    171,    172,    173,    174,    175,
4237      176,    177,    178,    179,    180,    181,    182,    183,
4238      184,    185,    186,    187,    188,    189,    190,    191,
4239      192,    193,    194,    195,    196,    197,    198,    199,
4240      200,    201,    202,    203,    204,    205,    206,    207,
4241      208,    209,    210,    211,    212,    213,    214,    215,
4242      216,    217,    218,    219,    220,    221,    222,    223,    
4243      224,    225,    226,    227,    228,    229,    230,    231,
4244      232,    233,    234,    235,    236,    237,    238,    239,
4245      240,    241,    242,    243,    244,    245,    246,    247,
4246      248,    249,    250,    251,    252,    253,    254,    255
4247  };
4248  #else
4249  EXT unsigned char PL_fold_locale[]; /* Unfortunately not EXTCONST. */
4250  #endif
4251  #endif /* !PERL_GLOBAL_STRUCT */
4252  
4253  #ifdef DOINIT
4254  #ifdef EBCDIC
4255  EXTCONST unsigned char PL_freq[] = {/* EBCDIC frequencies for mixed English/C */
4256      1,      2,      84,     151,    154,    155,    156,    157,
4257      165,    246,    250,    3,      158,    7,      18,     29,
4258      40,     51,     62,     73,     85,     96,     107,    118,
4259      129,    140,    147,    148,    149,    150,    152,    153,
4260      255,      6,      8,      9,     10,     11,     12,     13,
4261       14,     15,     24,     25,     26,     27,     28,    226,
4262       29,     30,     31,     32,     33,     43,     44,     45,
4263       46,     47,     48,     49,     50,     76,     77,     78,
4264       79,     80,     81,     82,     83,     84,     85,     86,
4265       87,     94,     95,    234,    181,    233,    187,    190,
4266      180,     96,     97,     98,     99,    100,    101,    102,
4267      104,    112,    182,    174,    236,    232,    229,    103,
4268      228,    226,    114,    115,    116,    117,    118,    119,
4269      120,    121,    122,    235,    176,    230,    194,    162,
4270      130,    131,    132,    133,    134,    135,    136,    137,
4271      138,    139,    201,    205,    163,    217,    220,    224,
4272      5,      248,    227,    244,    242,    255,    241,    231,
4273      240,    253,    16,     197,    19,     20,     21,     187,
4274      23,     169,    210,    245,    237,    249,    247,    239,
4275      168,    252,    34,     196,    36,     37,     38,     39,
4276      41,     42,     251,    254,    238,    223,    221,    213,
4277      225,    177,    52,     53,     54,     55,     56,     57,
4278      58,     59,     60,     61,     63,     64,     65,     66,
4279      67,     68,     69,     70,     71,     72,     74,     75,
4280      205,    208,    186,    202,    200,    218,    198,    179,
4281      178,    214,    88,     89,     90,     91,     92,     93,
4282      217,    166,    170,    207,    199,    209,    206,    204,
4283      160,    212,    105,    106,    108,    109,    110,    111,
4284      203,    113,    216,    215,    192,    175,    193,    243,
4285      172,    161,    123,    124,    125,    126,    127,    128,
4286      222,    219,    211,    195,    188,    193,    185,    184,
4287      191,    183,    141,    142,    143,    144,    145,    146
4288  };
4289  #else  /* ascii rather than ebcdic */
4290  EXTCONST unsigned char PL_freq[] = {    /* letter frequencies for mixed English/C */
4291      1,    2,    84,    151,    154,    155,    156,    157,
4292      165,    246,    250,    3,    158,    7,    18,    29,
4293      40,    51,    62,    73,    85,    96,    107,    118,
4294      129,    140,    147,    148,    149,    150,    152,    153,
4295      255,    182,    224,    205,    174,    176,    180,    217,
4296      233,    232,    236,    187,    235,    228,    234,    226,
4297      222,    219,    211,    195,    188,    193,    185,    184,
4298      191,    183,    201,    229,    181,    220,    194,    162,
4299      163,    208,    186,    202,    200,    218,    198,    179,
4300      178,    214,    166,    170,    207,    199,    209,    206,
4301      204,    160,    212,    216,    215,    192,    175,    173,
4302      243,    172,    161,    190,    203,    189,    164,    230,
4303      167,    248,    227,    244,    242,    255,    241,    231,
4304      240,    253,    169,    210,    245,    237,    249,    247,
4305      239,    168,    252,    251,    254,    238,    223,    221,
4306      213,    225,    177,    197,    171,    196,    159,    4,
4307      5,    6,    8,    9,    10,    11,    12,    13,
4308      14,    15,    16,    17,    19,    20,    21,    22,
4309      23,    24,    25,    26,    27,    28,    30,    31,
4310      32,    33,    34,    35,    36,    37,    38,    39,
4311      41,    42,    43,    44,    45,    46,    47,    48,
4312      49,    50,    52,    53,    54,    55,    56,    57,
4313      58,    59,    60,    61,    63,    64,    65,    66,
4314      67,    68,    69,    70,    71,    72,    74,    75,
4315      76,    77,    78,    79,    80,    81,    82,    83,
4316      86,    87,    88,    89,    90,    91,    92,    93,
4317      94,    95,    97,    98,    99,    100,    101,    102,
4318      103,    104,    105,    106,    108,    109,    110,    111,
4319      112,    113,    114,    115,    116,    117,    119,    120,
4320      121,    122,    123,    124,    125,    126,    127,    128,
4321      130,    131,    132,    133,    134,    135,    136,    137,
4322      138,    139,    141,    142,    143,    144,    145,    146
4323  };
4324  #endif
4325  #else
4326  EXTCONST unsigned char PL_freq[];
4327  #endif
4328  
4329  #ifdef DEBUGGING
4330  #ifdef DOINIT
4331  EXTCONST char* const PL_block_type[] = {
4332      "NULL",
4333      "SUB",
4334      "EVAL",
4335      "LOOP",
4336      "SUBST",
4337      "BLOCK",
4338      "FORMAT",
4339      "GIVEN",
4340      "WHEN"
4341  };
4342  #else
4343  EXTCONST char* PL_block_type[];
4344  #endif
4345  #endif
4346  
4347  /* These are all the compile time options that affect binary compatibility.
4348     Other compile time options that are binary compatible are in perl.c
4349     Both are combined for the output of perl -V
4350     However, this string will be embedded in any shared perl library, which will
4351     allow us add a comparison check in perlmain.c in the near future.  */
4352  #ifdef DOINIT
4353  EXTCONST char PL_bincompat_options[] =
4354  #  ifdef DEBUG_LEAKING_SCALARS
4355                   " DEBUG_LEAKING_SCALARS"
4356  #  endif
4357  #  ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
4358                   " DEBUG_LEAKING_SCALARS_FORK_DUMP"
4359  #  endif
4360  #  ifdef FAKE_THREADS
4361                   " FAKE_THREADS"
4362  #  endif
4363  #  ifdef MULTIPLICITY
4364                   " MULTIPLICITY"
4365  #  endif
4366  #  ifdef MYMALLOC
4367                   " MYMALLOC"
4368  #  endif
4369  #  ifdef PERL_DEBUG_READONLY_OPS
4370                   " PERL_DEBUG_READONLY_OPS"
4371  #  endif
4372  #  ifdef PERL_GLOBAL_STRUCT
4373                   " PERL_GLOBAL_STRUCT"
4374  #  endif
4375  #  ifdef PERL_IMPLICIT_CONTEXT
4376                   " PERL_IMPLICIT_CONTEXT"
4377  #  endif
4378  #  ifdef PERL_IMPLICIT_SYS
4379                   " PERL_IMPLICIT_SYS"
4380  #  endif
4381  #  ifdef PERL_MAD
4382                   " PERL_MAD"
4383  #  endif
4384  #  ifdef PERL_NEED_APPCTX
4385                   " PERL_NEED_APPCTX"
4386  #  endif
4387  #  ifdef PERL_NEED_TIMESBASE
4388                   " PERL_NEED_TIMESBASE"
4389  #  endif
4390  #  ifdef PERL_OLD_COPY_ON_WRITE
4391                   " PERL_OLD_COPY_ON_WRITE"
4392  #  endif
4393  #  ifdef PERL_POISON
4394                   " PERL_POISON"
4395  #  endif
4396  #  ifdef PERL_TRACK_MEMPOOL
4397                   " PERL_TRACK_MEMPOOL"
4398  #  endif
4399  #  ifdef PERL_USES_PL_PIDSTATUS
4400                   " PERL_USES_PL_PIDSTATUS"
4401  #  endif
4402  #  ifdef PL_OP_SLAB_ALLOC
4403                   " PL_OP_SLAB_ALLOC"
4404  #  endif
4405  #  ifdef THREADS_HAVE_PIDS
4406                   " THREADS_HAVE_PIDS"
4407  #  endif
4408  #  ifdef USE_64_BIT_ALL
4409                   " USE_64_BIT_ALL"
4410  #  endif
4411  #  ifdef USE_64_BIT_INT
4412                   " USE_64_BIT_INT"
4413  #  endif
4414  #  ifdef USE_IEEE
4415                   " USE_IEEE"
4416  #  endif
4417  #  ifdef USE_ITHREADS
4418                   " USE_ITHREADS"
4419  #  endif
4420  #  ifdef USE_LARGE_FILES
4421                   " USE_LARGE_FILES"
4422  #  endif
4423  #  ifdef USE_LONG_DOUBLE
4424                   " USE_LONG_DOUBLE"
4425  #  endif
4426  #  ifdef USE_PERLIO
4427                   " USE_PERLIO"
4428  #  endif
4429  #  ifdef USE_REENTRANT_API
4430                   " USE_REENTRANT_API"
4431  #  endif
4432  #  ifdef USE_SFIO
4433                   " USE_SFIO"
4434  #  endif
4435  #  ifdef USE_SOCKS
4436                   " USE_SOCKS"
4437  #  endif
4438  #  ifdef VMS_DO_SOCKETS
4439                   " VMS_DO_SOCKETS"
4440  #    ifdef DECCRTL_SOCKETS
4441                   " DECCRTL_SOCKETS"
4442  #    endif
4443  #  endif
4444  #  ifdef VMS_WE_ARE_CASE_SENSITIVE
4445                   " VMS_SYMBOL_CASE_AS_IS"
4446  #  endif
4447    "";
4448  #else
4449  EXTCONST char PL_bincompat_options[];
4450  #endif
4451  
4452  END_EXTERN_C
4453  
4454  /*****************************************************************************/
4455  /* This lexer/parser stuff is currently global since yacc is hard to reenter */
4456  /*****************************************************************************/
4457  /* XXX This needs to be revisited, since BEGIN makes yacc re-enter... */
4458  
4459  #ifdef __Lynx__
4460  /* LynxOS defines these in scsi.h which is included via ioctl.h */
4461  #ifdef FORMAT
4462  #undef FORMAT
4463  #endif
4464  #ifdef SPACE
4465  #undef SPACE
4466  #endif
4467  #endif
4468  
4469  #define LEX_NOTPARSING        11    /* borrowed from toke.c */
4470  
4471  typedef enum {
4472      XOPERATOR,
4473      XTERM,
4474      XREF,
4475      XSTATE,
4476      XBLOCK,
4477      XATTRBLOCK,
4478      XATTRTERM,
4479      XTERMBLOCK,
4480      XTERMORDORDOR /* evil hack */
4481      /* update exp_name[] in toke.c if adding to this enum */
4482  } expectation;
4483  
4484  enum {        /* pass one of these to get_vtbl */
4485      want_vtbl_sv,
4486      want_vtbl_env,
4487      want_vtbl_envelem,
4488      want_vtbl_sig,
4489      want_vtbl_sigelem,
4490      want_vtbl_pack,
4491      want_vtbl_packelem,
4492      want_vtbl_dbline,
4493      want_vtbl_isa,
4494      want_vtbl_isaelem,
4495      want_vtbl_arylen,
4496      want_vtbl_glob,
4497      want_vtbl_mglob,
4498      want_vtbl_nkeys,
4499      want_vtbl_taint,
4500      want_vtbl_substr,
4501      want_vtbl_vec,
4502      want_vtbl_pos,
4503      want_vtbl_bm,
4504      want_vtbl_fm,
4505      want_vtbl_uvar,
4506      want_vtbl_defelem,
4507      want_vtbl_regexp,
4508      want_vtbl_collxfrm,
4509      want_vtbl_amagic,
4510      want_vtbl_amagicelem,
4511      want_vtbl_regdata,
4512      want_vtbl_regdatum,
4513      want_vtbl_backref,
4514      want_vtbl_utf8,
4515      want_vtbl_symtab,
4516      want_vtbl_arylen_p,
4517      want_vtbl_hintselem
4518  };
4519  
4520  
4521  /* Hints are now stored in a dedicated U32, so the bottom 8 bits are no longer
4522     special and there is no need for HINT_PRIVATE_MASK for COPs
4523     However, bitops store HINT_INTEGER in their op_private.  */
4524  #define HINT_INTEGER        0x00000001 /* integer pragma */
4525  #define HINT_STRICT_REFS    0x00000002 /* strict pragma */
4526  #define HINT_LOCALE        0x00000004 /* locale pragma */
4527  #define HINT_BYTES        0x00000008 /* bytes pragma */
4528  #define HINT_ARYBASE        0x00000010 /* $[ is non-zero */
4529                  /* Note: 20,40,80 used for NATIVE_HINTS */
4530                  /* currently defined by vms/vmsish.h */
4531  
4532  #define HINT_BLOCK_SCOPE    0x00000100
4533  #define HINT_STRICT_SUBS    0x00000200 /* strict pragma */
4534  #define HINT_STRICT_VARS    0x00000400 /* strict pragma */
4535  
4536  /* The HINT_NEW_* constants are used by the overload pragma */
4537  #define HINT_NEW_INTEGER    0x00001000
4538  #define HINT_NEW_FLOAT        0x00002000
4539  #define HINT_NEW_BINARY        0x00004000
4540  #define HINT_NEW_STRING        0x00008000
4541  #define HINT_NEW_RE        0x00010000
4542  #define HINT_LOCALIZE_HH    0x00020000 /* %^H needs to be copied */
4543  #define HINT_LEXICAL_IO_IN    0x00040000 /* ${^OPEN} is set for input */
4544  #define HINT_LEXICAL_IO_OUT    0x00080000 /* ${^OPEN} is set for output */
4545  
4546  #define HINT_RE_TAINT        0x00100000 /* re pragma */
4547  #define HINT_RE_EVAL        0x00200000 /* re pragma */
4548  
4549  #define HINT_FILETEST_ACCESS    0x00400000 /* filetest pragma */
4550  #define HINT_UTF8        0x00800000 /* utf8 pragma */
4551  
4552  /* The following are stored in $^H{sort}, not in PL_hints */
4553  #define HINT_SORT_SORT_BITS    0x000000FF /* allow 256 different ones */
4554  #define HINT_SORT_QUICKSORT    0x00000001
4555  #define HINT_SORT_MERGESORT    0x00000002
4556  #define HINT_SORT_STABLE    0x00000100 /* sort styles (currently one) */
4557  
4558  /* Various states of the input record separator SV (rs) */
4559  #define RsSNARF(sv)   (! SvOK(sv))
4560  #define RsSIMPLE(sv)  (SvOK(sv) && (! SvPOK(sv) || SvCUR(sv)))
4561  #define RsPARA(sv)    (SvPOK(sv) && ! SvCUR(sv))
4562  #define RsRECORD(sv)  (SvROK(sv) && (SvIV(SvRV(sv)) > 0))
4563  
4564  /* A struct for keeping various DEBUGGING related stuff,
4565   * neatly packed.  Currently only scratch variables for
4566   * constructing debug output are included.  Needed always,
4567   * not just when DEBUGGING, though, because of the re extension. c*/
4568  struct perl_debug_pad {
4569    SV pad[3];
4570  };
4571  
4572  #define PERL_DEBUG_PAD(i)    &(PL_debug_pad.pad[i])
4573  #define PERL_DEBUG_PAD_ZERO(i)    (SvPVX(PERL_DEBUG_PAD(i))[0] = 0, \
4574      (((XPV*) SvANY(PERL_DEBUG_PAD(i)))->xpv_cur = 0), \
4575      PERL_DEBUG_PAD(i))
4576  
4577  /* Enable variables which are pointers to functions */
4578  typedef void (CPERLscope(*peep_t))(pTHX_ OP* o);
4579  typedef regexp*(CPERLscope(*regcomp_t)) (pTHX_ char* exp, char* xend, PMOP* pm);
4580  typedef I32 (CPERLscope(*regexec_t)) (pTHX_ regexp* prog, char* stringarg,
4581                        char* strend, char* strbeg, I32 minend,
4582                        SV* screamer, void* data, U32 flags);
4583  typedef char* (CPERLscope(*re_intuit_start_t)) (pTHX_ regexp *prog, SV *sv,
4584                          char *strpos, char *strend,
4585                          U32 flags,
4586                          re_scream_pos_data *d);
4587  typedef SV*    (CPERLscope(*re_intuit_string_t)) (pTHX_ regexp *prog);
4588  typedef void    (CPERLscope(*regfree_t)) (pTHX_ struct regexp* r);
4589  typedef regexp*(CPERLscope(*regdupe_t)) (pTHX_ const regexp* r, CLONE_PARAMS *param);
4590  
4591  typedef void (*DESTRUCTORFUNC_NOCONTEXT_t) (void*);
4592  typedef void (*DESTRUCTORFUNC_t) (pTHX_ void*);
4593  typedef void (*SVFUNC_t) (pTHX_ SV*);
4594  typedef I32  (*SVCOMPARE_t) (pTHX_ SV*, SV*);
4595  typedef void (*XSINIT_t) (pTHX);
4596  typedef void (*ATEXIT_t) (pTHX_ void*);
4597  typedef void (*XSUBADDR_t) (pTHX_ CV *);
4598  
4599  /* Set up PERLVAR macros for populating structs */
4600  #define PERLVAR(var,type) type var;
4601  #define PERLVARA(var,n,type) type var[n];
4602  #define PERLVARI(var,type,init) type var;
4603  #define PERLVARIC(var,type,init) type var;
4604  #define PERLVARISC(var,init) const char var[sizeof(init)];
4605  
4606  typedef OP* (CPERLscope(*Perl_ppaddr_t))(pTHX);
4607  typedef OP* (CPERLscope(*Perl_check_t)) (pTHX_ OP*);
4608  
4609  /* Interpreter exitlist entry */
4610  typedef struct exitlistentry {
4611      void (*fn) (pTHX_ void*);
4612      void *ptr;
4613  } PerlExitListEntry;
4614  
4615  /* if you only have signal() and it resets on each signal, FAKE_PERSISTENT_SIGNAL_HANDLERS fixes */
4616  /* These have to be before perlvars.h */
4617  #if !defined(HAS_SIGACTION) && defined(VMS)
4618  #  define  FAKE_PERSISTENT_SIGNAL_HANDLERS
4619  #endif
4620  /* if we're doing kill() with sys$sigprc on VMS, FAKE_DEFAULT_SIGNAL_HANDLERS */
4621  #if defined(KILL_BY_SIGPRC)
4622  #  define  FAKE_DEFAULT_SIGNAL_HANDLERS
4623  #endif
4624  
4625  #define PERL_PATCHLEVEL_H_IMPLICIT
4626  #include "patchlevel.h"
4627  #undef PERL_PATCHLEVEL_H_IMPLICIT
4628  
4629  #ifdef PERL_GLOBAL_STRUCT
4630  struct perl_vars {
4631  #  include "perlvars.h"
4632  };
4633  
4634  #  ifdef PERL_CORE
4635  #    ifndef PERL_GLOBAL_STRUCT_PRIVATE
4636  EXT struct perl_vars PL_Vars;
4637  EXT struct perl_vars *PL_VarsPtr INIT(&PL_Vars);
4638  #      undef PERL_GET_VARS
4639  #      define PERL_GET_VARS() PL_VarsPtr
4640  #    endif /* !PERL_GLOBAL_STRUCT_PRIVATE */
4641  #  else /* PERL_CORE */
4642  #    if !defined(__GNUC__) || !defined(WIN32)
4643  EXT
4644  #    endif /* WIN32 */
4645  struct perl_vars *PL_VarsPtr;
4646  #    define PL_Vars (*((PL_VarsPtr) \
4647                 ? PL_VarsPtr : (PL_VarsPtr = Perl_GetVars(aTHX))))
4648  #  endif /* PERL_CORE */
4649  #endif /* PERL_GLOBAL_STRUCT */
4650  
4651  #if defined(MULTIPLICITY)
4652  /* If we have multiple interpreters define a struct
4653     holding variables which must be per-interpreter
4654     If we don't have threads anything that would have
4655     be per-thread is per-interpreter.
4656  */
4657  
4658  struct interpreter {
4659  #  include "intrpvar.h"
4660  };
4661  
4662  #else
4663  struct interpreter {
4664      char broiled;
4665  };
4666  #endif /* MULTIPLICITY */
4667  
4668  /* Done with PERLVAR macros for now ... */
4669  #undef PERLVAR
4670  #undef PERLVARA
4671  #undef PERLVARI
4672  #undef PERLVARIC
4673  #undef PERLVARISC
4674  
4675  struct tempsym; /* defined in pp_pack.c */
4676  
4677  #include "thread.h"
4678  #include "pp.h"
4679  
4680  #ifndef PERL_CALLCONV
4681  #  ifdef __cplusplus
4682  #    define PERL_CALLCONV extern "C"
4683  #  else
4684  #    define PERL_CALLCONV
4685  #  endif
4686  #endif
4687  #undef PERL_CKDEF
4688  #undef PERL_PPDEF
4689  #define PERL_CKDEF(s)    PERL_CALLCONV OP *s (pTHX_ OP *o);
4690  #define PERL_PPDEF(s)    PERL_CALLCONV OP *s (pTHX);
4691  
4692  #include "proto.h"
4693  
4694  /* this has structure inits, so it cannot be included before here */
4695  #include "opcode.h"
4696  
4697  /* The following must follow proto.h as #defines mess up syntax */
4698  
4699  #if !defined(PERL_FOR_X2P)
4700  #  include "embedvar.h"
4701  #endif
4702  #ifndef PERL_MAD
4703  #  undef PL_madskills
4704  #  undef PL_xmlfp
4705  #  define PL_madskills 0
4706  #  define PL_xmlfp 0
4707  #endif
4708  
4709  /* Now include all the 'global' variables
4710   * If we don't have threads or multiple interpreters
4711   * these include variables that would have been their struct-s
4712   */
4713  
4714  #define PERLVAR(var,type) EXT type PL_##var;
4715  #define PERLVARA(var,n,type) EXT type PL_##var[n];
4716  #define PERLVARI(var,type,init) EXT type  PL_##var INIT(init);
4717  #define PERLVARIC(var,type,init) EXTCONST type PL_##var INIT(init);
4718  #define PERLVARISC(var,init) EXTCONST char PL_##var[sizeof(init)] INIT(init);
4719  
4720  #if !defined(MULTIPLICITY)
4721  START_EXTERN_C
4722  #  include "intrpvar.h"
4723  END_EXTERN_C
4724  #endif
4725  
4726  #if defined(WIN32)
4727  /* Now all the config stuff is setup we can include embed.h */
4728  #  include "embed.h"
4729  #  ifndef PERL_MAD
4730  #    undef op_getmad
4731  #    define op_getmad(arg,pegop,slot) NOOP
4732  #  endif
4733  #endif
4734  
4735  #ifndef PERL_GLOBAL_STRUCT
4736  START_EXTERN_C
4737  
4738  #  include "perlvars.h"
4739  
4740  END_EXTERN_C
4741  #endif
4742  
4743  #undef PERLVAR
4744  #undef PERLVARA
4745  #undef PERLVARI
4746  #undef PERLVARIC
4747  
4748  START_EXTERN_C
4749  
4750  /* PERL_GLOBAL_STRUCT_PRIVATE wants to keep global data like the
4751   * magic vtables const, but this is incompatible with SWIG which
4752   * does want to modify the vtables. */
4753  #ifdef PERL_GLOBAL_STRUCT_PRIVATE
4754  #  define EXT_MGVTBL EXTCONST MGVTBL
4755  #else
4756  #  define EXT_MGVTBL EXT MGVTBL
4757  #endif
4758  
4759  #ifdef DOINIT
4760  #  define MGVTBL_SET(var,a,b,c,d,e,f,g,h) EXT_MGVTBL var = {a,b,c,d,e,f,g,h}
4761  /* Like MGVTBL_SET but with the get magic having a const MG* */
4762  #  define MGVTBL_SET_CONST_MAGIC_GET(var,a,b,c,d,e,f,g,h) EXT_MGVTBL var \
4763      = {(int (*)(pTHX_ SV *, MAGIC *))a,b,c,d,e,f,g,h}
4764  #else
4765  #  define MGVTBL_SET(var,a,b,c,d,e,f,g,h) EXT_MGVTBL var
4766  #  define MGVTBL_SET_CONST_MAGIC_GET(var,a,b,c,d,e,f,g,h) EXT_MGVTBL var
4767  #endif
4768  
4769  /* These all need to be 0, not NULL, as NULL can be (void*)0, which is a
4770   * pointer to data, whereas we're assigning pointers to functions, which are
4771   * not the same beast. ANSI doesn't allow the assignment from one to the other.
4772   * (although most, but not all, compilers are prepared to do it)
4773   */
4774  MGVTBL_SET(
4775      PL_vtbl_sv,
4776      MEMBER_TO_FPTR(Perl_magic_get),
4777      MEMBER_TO_FPTR(Perl_magic_set),
4778      MEMBER_TO_FPTR(Perl_magic_len),
4779      0,
4780      0,
4781      0,
4782      0,
4783      0
4784  );
4785  
4786  MGVTBL_SET(
4787      PL_vtbl_env,
4788      0,
4789      MEMBER_TO_FPTR(Perl_magic_set_all_env),
4790      0,
4791      MEMBER_TO_FPTR(Perl_magic_clear_all_env),
4792      0,
4793      0,
4794      0,
4795      0
4796  );
4797  
4798  MGVTBL_SET(
4799      PL_vtbl_envelem,
4800      0,
4801      MEMBER_TO_FPTR(Perl_magic_setenv),
4802      0,
4803      MEMBER_TO_FPTR(Perl_magic_clearenv),
4804      0,
4805      0,
4806      0,
4807      0
4808  );
4809  
4810  /* For now, hints magic will also use vtbl_sig, because it is all 0  */
4811  MGVTBL_SET(
4812      PL_vtbl_sig,
4813      0,
4814      0,
4815      0,
4816      0,
4817      0,
4818      0,
4819      0,
4820      0
4821  );
4822  
4823  #ifdef PERL_MICRO
4824  MGVTBL_SET(
4825      PL_vtbl_sigelem,
4826      0,
4827      0,
4828      0,
4829      0,
4830      0,
4831      0,
4832      0,
4833      0
4834  );
4835  
4836  #else
4837  MGVTBL_SET(
4838      PL_vtbl_sigelem,
4839      MEMBER_TO_FPTR(Perl_magic_getsig),
4840      MEMBER_TO_FPTR(Perl_magic_setsig),
4841      0,
4842      MEMBER_TO_FPTR(Perl_magic_clearsig),
4843      0,
4844      0,
4845      0,
4846      0
4847  );
4848  #endif
4849  
4850  MGVTBL_SET(
4851      PL_vtbl_pack,
4852      0,
4853      0,
4854      MEMBER_TO_FPTR(Perl_magic_sizepack),
4855      MEMBER_TO_FPTR(Perl_magic_wipepack),
4856      0,
4857      0,
4858      0,
4859      0
4860  );
4861  
4862  MGVTBL_SET(
4863      PL_vtbl_packelem,
4864      MEMBER_TO_FPTR(Perl_magic_getpack),
4865      MEMBER_TO_FPTR(Perl_magic_setpack),
4866      0,
4867      MEMBER_TO_FPTR(Perl_magic_clearpack),
4868      0,
4869      0,
4870      0,
4871      0
4872  );
4873  
4874  MGVTBL_SET(
4875      PL_vtbl_dbline,
4876      0,
4877      MEMBER_TO_FPTR(Perl_magic_setdbline),
4878      0,
4879      0,
4880      0,
4881      0,
4882      0,
4883      0
4884  );
4885  
4886  MGVTBL_SET(
4887      PL_vtbl_isa,
4888      0,
4889      MEMBER_TO_FPTR(Perl_magic_setisa),
4890      0,
4891      MEMBER_TO_FPTR(Perl_magic_setisa),
4892      0,
4893      0,
4894      0,
4895      0
4896  );
4897  
4898  MGVTBL_SET(
4899      PL_vtbl_isaelem,
4900      0,
4901      MEMBER_TO_FPTR(Perl_magic_setisa),
4902      0,
4903      0,
4904      0,
4905      0,
4906      0,
4907      0
4908  );
4909  
4910  MGVTBL_SET_CONST_MAGIC_GET(
4911      PL_vtbl_arylen,
4912      MEMBER_TO_FPTR(Perl_magic_getarylen),
4913      MEMBER_TO_FPTR(Perl_magic_setarylen),
4914      0,
4915      0,
4916      0,
4917      0,
4918      0,
4919      0
4920  );
4921  
4922  MGVTBL_SET(
4923      PL_vtbl_arylen_p,
4924      0,
4925      0,
4926      0,
4927      0,
4928      MEMBER_TO_FPTR(Perl_magic_freearylen_p),
4929      0,
4930      0,
4931      0
4932  );
4933  
4934  MGVTBL_SET(
4935      PL_vtbl_mglob,
4936      0,
4937      MEMBER_TO_FPTR(Perl_magic_setmglob),
4938      0,
4939      0,
4940      0,
4941      0,
4942      0,
4943      0
4944  );
4945  
4946  MGVTBL_SET(
4947      PL_vtbl_nkeys,
4948      MEMBER_TO_FPTR(Perl_magic_getnkeys),
4949      MEMBER_TO_FPTR(Perl_magic_setnkeys),
4950      0,
4951      0,
4952      0,
4953      0,
4954      0,
4955      0
4956  );
4957  
4958  MGVTBL_SET(
4959      PL_vtbl_taint,
4960      MEMBER_TO_FPTR(Perl_magic_gettaint),
4961      MEMBER_TO_FPTR(Perl_magic_settaint),
4962      0,
4963      0,
4964      0,
4965      0,
4966      0,
4967      0
4968  );
4969  
4970  MGVTBL_SET(
4971      PL_vtbl_substr,
4972      MEMBER_TO_FPTR(Perl_magic_getsubstr),
4973      MEMBER_TO_FPTR(Perl_magic_setsubstr),
4974      0,
4975      0,
4976      0,
4977      0,
4978      0,
4979      0
4980  );
4981  
4982  MGVTBL_SET(
4983      PL_vtbl_vec,
4984      MEMBER_TO_FPTR(Perl_magic_getvec),
4985      MEMBER_TO_FPTR(Perl_magic_setvec),
4986      0,
4987      0,
4988      0,
4989      0,
4990      0,
4991      0
4992  );
4993  
4994  MGVTBL_SET(
4995      PL_vtbl_pos,
4996      MEMBER_TO_FPTR(Perl_magic_getpos),
4997      MEMBER_TO_FPTR(Perl_magic_setpos),
4998      0,
4999      0,
5000      0,
5001      0,
5002      0,
5003      0
5004  );
5005  
5006  MGVTBL_SET(
5007      PL_vtbl_bm,
5008      0,
5009      MEMBER_TO_FPTR(Perl_magic_setbm),
5010      0,
5011      0,
5012      0,
5013      0,
5014      0,
5015      0
5016  );
5017  
5018  MGVTBL_SET(
5019      PL_vtbl_fm,
5020      0,
5021      MEMBER_TO_FPTR(Perl_magic_setfm),
5022      0,
5023      0,
5024      0,
5025      0,
5026      0,
5027      0
5028  );
5029  
5030  MGVTBL_SET(
5031      PL_vtbl_uvar,
5032      MEMBER_TO_FPTR(Perl_magic_getuvar),
5033      MEMBER_TO_FPTR(Perl_magic_setuvar),
5034      0,
5035      0,
5036      0,
5037      0,
5038      0,
5039      0
5040  );
5041  
5042  MGVTBL_SET(
5043      PL_vtbl_defelem,
5044      MEMBER_TO_FPTR(Perl_magic_getdefelem),
5045      MEMBER_TO_FPTR(Perl_magic_setdefelem),
5046      0,
5047      0,
5048      0,
5049      0,
5050      0,
5051      0
5052  );
5053  
5054  MGVTBL_SET(
5055      PL_vtbl_regexp,
5056      0,
5057      MEMBER_TO_FPTR(Perl_magic_setregexp),
5058      0,
5059      0,
5060      MEMBER_TO_FPTR(Perl_magic_freeregexp),
5061      0,
5062      0,
5063      0
5064  );
5065  
5066  MGVTBL_SET(
5067      PL_vtbl_regdata,
5068      0,
5069      0,
5070      MEMBER_TO_FPTR(Perl_magic_regdata_cnt),
5071      0,
5072      0,
5073      0,
5074      0,
5075      0
5076  );
5077  
5078  MGVTBL_SET(
5079      PL_vtbl_regdatum,
5080      MEMBER_TO_FPTR(Perl_magic_regdatum_get),
5081      MEMBER_TO_FPTR(Perl_magic_regdatum_set),
5082      0,
5083      0,
5084      0,
5085      0,
5086      0,
5087      0
5088  );
5089  
5090  MGVTBL_SET(
5091      PL_vtbl_amagic,
5092      0,
5093      MEMBER_TO_FPTR(Perl_magic_setamagic),
5094      0,
5095      0,
5096      MEMBER_TO_FPTR(Perl_magic_setamagic),
5097      0,
5098      0,
5099      0
5100  );
5101  
5102  MGVTBL_SET(
5103      PL_vtbl_amagicelem,
5104      0,
5105      MEMBER_TO_FPTR(Perl_magic_setamagic),
5106      0,
5107      0,
5108      MEMBER_TO_FPTR(Perl_magic_setamagic),
5109      0,
5110      0,
5111      0
5112  );
5113  
5114  MGVTBL_SET(
5115      PL_vtbl_backref,
5116      0,
5117      0,
5118      0,
5119      0,
5120      MEMBER_TO_FPTR(Perl_magic_killbackrefs),
5121      0,
5122      0,
5123      0
5124  );
5125  
5126  MGVTBL_SET(
5127      PL_vtbl_ovrld,
5128      0,
5129      0,
5130      0,
5131      0,
5132      MEMBER_TO_FPTR(Perl_magic_freeovrld),
5133      0,
5134      0,
5135      0
5136  );
5137  
5138  MGVTBL_SET(
5139      PL_vtbl_utf8,
5140      0,
5141      MEMBER_TO_FPTR(Perl_magic_setutf8),
5142      0,
5143      0,
5144      0,
5145      0,
5146      0,
5147      0
5148  );
5149  #ifdef USE_LOCALE_COLLATE
5150  MGVTBL_SET(
5151      PL_vtbl_collxfrm,
5152      0,
5153      MEMBER_TO_FPTR(Perl_magic_setcollxfrm),
5154      0,
5155      0,
5156      0,
5157      0,
5158      0,
5159      0
5160  );
5161  #endif
5162  
5163  MGVTBL_SET(
5164      PL_vtbl_hintselem,
5165      0,
5166      MEMBER_TO_FPTR(Perl_magic_sethint),
5167      0,
5168      MEMBER_TO_FPTR(Perl_magic_clearhint),
5169      0,
5170      0,
5171      0,
5172      0
5173  );
5174  
5175  #include "overload.h"
5176  
5177  END_EXTERN_C
5178  
5179  struct am_table {
5180    U32 flags;
5181    U32 was_ok_sub;
5182    long was_ok_am;
5183    long fallback;
5184    CV* table[NofAMmeth];
5185  };
5186  struct am_table_short {
5187    U32 flags;
5188    U32 was_ok_sub;
5189    long was_ok_am;
5190  };
5191  typedef struct am_table AMT;
5192  typedef struct am_table_short AMTS;
5193  
5194  #define AMGfallNEVER    1
5195  #define AMGfallNO    2
5196  #define AMGfallYES    3
5197  
5198  #define AMTf_AMAGIC        1
5199  #define AMTf_OVERLOADED        2
5200  #define AMT_AMAGIC(amt)        ((amt)->flags & AMTf_AMAGIC)
5201  #define AMT_AMAGIC_on(amt)    ((amt)->flags |= AMTf_AMAGIC)
5202  #define AMT_AMAGIC_off(amt)    ((amt)->flags &= ~AMTf_AMAGIC)
5203  #define AMT_OVERLOADED(amt)    ((amt)->flags & AMTf_OVERLOADED)
5204  #define AMT_OVERLOADED_on(amt)    ((amt)->flags |= AMTf_OVERLOADED)
5205  #define AMT_OVERLOADED_off(amt)    ((amt)->flags &= ~AMTf_OVERLOADED)
5206  
5207  #define StashHANDLER(stash,meth)    gv_handler((stash),CAT2(meth,_amg))
5208  
5209  /*
5210   * some compilers like to redefine cos et alia as faster
5211   * (and less accurate?) versions called F_cos et cetera (Quidquid
5212   * latine dictum sit, altum viditur.)  This trick collides with
5213   * the Perl overloading (amg).  The following #defines fool both.
5214   */
5215  
5216  #ifdef _FASTMATH
5217  #   ifdef atan2
5218  #       define F_atan2_amg  atan2_amg
5219  #   endif
5220  #   ifdef cos
5221  #       define F_cos_amg    cos_amg
5222  #   endif
5223  #   ifdef exp
5224  #       define F_exp_amg    exp_amg
5225  #   endif
5226  #   ifdef log
5227  #       define F_log_amg    log_amg
5228  #   endif
5229  #   ifdef pow
5230  #       define F_pow_amg    pow_amg
5231  #   endif
5232  #   ifdef sin
5233  #       define F_sin_amg    sin_amg
5234  #   endif
5235  #   ifdef sqrt
5236  #       define F_sqrt_amg   sqrt_amg
5237  #   endif
5238  #endif /* _FASTMATH */
5239  
5240  #define PERLDB_ALL        (PERLDBf_SUB    | PERLDBf_LINE    |    \
5241                   PERLDBf_NOOPT    | PERLDBf_INTER    |    \
5242                   PERLDBf_SUBLINE| PERLDBf_SINGLE|    \
5243                   PERLDBf_NAMEEVAL| PERLDBf_NAMEANON )
5244                      /* No _NONAME, _GOTO, _ASSERTION */
5245  #define PERLDBf_SUB        0x01    /* Debug sub enter/exit */
5246  #define PERLDBf_LINE        0x02    /* Keep line # */
5247  #define PERLDBf_NOOPT        0x04    /* Switch off optimizations */
5248  #define PERLDBf_INTER        0x08    /* Preserve more data for
5249                         later inspections  */
5250  #define PERLDBf_SUBLINE        0x10    /* Keep subr source lines */
5251  #define PERLDBf_SINGLE        0x20    /* Start with single-step on */
5252  #define PERLDBf_NONAME        0x40    /* For _SUB: no name of the subr */
5253  #define PERLDBf_GOTO        0x80    /* Report goto: call DB::goto */
5254  #define PERLDBf_NAMEEVAL    0x100    /* Informative names for evals */
5255  #define PERLDBf_NAMEANON    0x200    /* Informative names for anon subs */
5256  
5257  #define PERLDB_SUB    (PL_perldb && (PL_perldb & PERLDBf_SUB))
5258  #define PERLDB_LINE    (PL_perldb && (PL_perldb & PERLDBf_LINE))
5259  #define PERLDB_NOOPT    (PL_perldb && (PL_perldb & PERLDBf_NOOPT))
5260  #define PERLDB_INTER    (PL_perldb && (PL_perldb & PERLDBf_INTER))
5261  #define PERLDB_SUBLINE    (PL_perldb && (PL_perldb & PERLDBf_SUBLINE))
5262  #define PERLDB_SINGLE    (PL_perldb && (PL_perldb & PERLDBf_SINGLE))
5263  #define PERLDB_SUB_NN    (PL_perldb && (PL_perldb & (PERLDBf_NONAME)))
5264  #define PERLDB_GOTO    (PL_perldb && (PL_perldb & PERLDBf_GOTO))
5265  #define PERLDB_NAMEEVAL    (PL_perldb && (PL_perldb & PERLDBf_NAMEEVAL))
5266  #define PERLDB_NAMEANON    (PL_perldb && (PL_perldb & PERLDBf_NAMEANON))
5267  #define PERLDB_ASSERTION (PL_perldb && (PL_perldb & PERLDBf_ASSERTION))
5268  
5269  #ifdef USE_LOCALE_NUMERIC
5270  
5271  #define SET_NUMERIC_STANDARD() \
5272      set_numeric_standard();
5273  
5274  #define SET_NUMERIC_LOCAL() \
5275      set_numeric_local();
5276  
5277  #define IN_LOCALE_RUNTIME    (CopHINTS_get(PL_curcop) & HINT_LOCALE)
5278  #define IN_LOCALE_COMPILETIME    (PL_hints & HINT_LOCALE)
5279  
5280  #define IN_LOCALE \
5281      (IN_PERL_COMPILETIME ? IN_LOCALE_COMPILETIME : IN_LOCALE_RUNTIME)
5282  
5283  #define STORE_NUMERIC_LOCAL_SET_STANDARD() \
5284      bool was_local = PL_numeric_local && IN_LOCALE; \
5285      if (was_local) SET_NUMERIC_STANDARD();
5286  
5287  #define STORE_NUMERIC_STANDARD_SET_LOCAL() \
5288      bool was_standard = PL_numeric_standard && IN_LOCALE; \
5289      if (was_standard) SET_NUMERIC_LOCAL();
5290  
5291  #define RESTORE_NUMERIC_LOCAL() \
5292      if (was_local) SET_NUMERIC_LOCAL();
5293  
5294  #define RESTORE_NUMERIC_STANDARD() \
5295      if (was_standard) SET_NUMERIC_STANDARD();
5296  
5297  #define Atof                my_atof
5298  
5299  #else /* !USE_LOCALE_NUMERIC */
5300  
5301  #define SET_NUMERIC_STANDARD()      /**/
5302  #define SET_NUMERIC_LOCAL()         /**/
5303  #define IS_NUMERIC_RADIX(a, b)        (0)
5304  #define STORE_NUMERIC_LOCAL_SET_STANDARD()    /**/
5305  #define STORE_NUMERIC_STANDARD_SET_LOCAL()    /**/
5306  #define RESTORE_NUMERIC_LOCAL()        /**/
5307  #define RESTORE_NUMERIC_STANDARD()    /**/
5308  #define Atof                my_atof
5309  #define IN_LOCALE_RUNTIME        0
5310  
5311  #endif /* !USE_LOCALE_NUMERIC */
5312  
5313  #if !defined(Strtol) && defined(USE_64_BIT_INT) && defined(IV_IS_QUAD) && QUADKIND == QUAD_IS_LONG_LONG
5314  #    ifdef __hpux
5315  #        define strtoll __strtoll    /* secret handshake */
5316  #    endif
5317  #    ifdef WIN64
5318  #        define strtoll _strtoi64    /* secret handshake */
5319  #    endif
5320  #   if !defined(Strtol) && defined(HAS_STRTOLL)
5321  #       define Strtol    strtoll
5322  #   endif
5323  #    if !defined(Strtol) && defined(HAS_STRTOQ)
5324  #       define Strtol    strtoq
5325  #    endif
5326  /* is there atoq() anywhere? */
5327  #endif
5328  #if !defined(Strtol) && defined(HAS_STRTOL)
5329  #   define Strtol    strtol
5330  #endif
5331  #ifndef Atol
5332  /* It would be more fashionable to use Strtol() to define atol()
5333   * (as is done for Atoul(), see below) but for backward compatibility
5334   * we just assume atol(). */
5335  #   if defined(USE_64_BIT_INT) && defined(IV_IS_QUAD) && QUADKIND == QUAD_IS_LONG_LONG && defined(HAS_ATOLL)
5336  #    ifdef WIN64
5337  #       define atoll    _atoi64        /* secret handshake */
5338  #    endif
5339  #       define Atol    atoll
5340  #   else
5341  #       define Atol    atol
5342  #   endif
5343  #endif
5344  
5345  #if !defined(Strtoul) && defined(USE_64_BIT_INT) && defined(UV_IS_QUAD) && QUADKIND == QUAD_IS_LONG_LONG
5346  #    ifdef __hpux
5347  #        define strtoull __strtoull    /* secret handshake */
5348  #    endif
5349  #    ifdef WIN64
5350  #        define strtoull _strtoui64    /* secret handshake */
5351  #    endif
5352  #    if !defined(Strtoul) && defined(HAS_STRTOULL)
5353  #       define Strtoul    strtoull
5354  #    endif
5355  #    if !defined(Strtoul) && defined(HAS_STRTOUQ)
5356  #       define Strtoul    strtouq
5357  #    endif
5358  /* is there atouq() anywhere? */
5359  #endif
5360  #if !defined(Strtoul) && defined(HAS_STRTOUL)
5361  #   define Strtoul    strtoul
5362  #endif
5363  #if !defined(Strtoul) && defined(HAS_STRTOL) /* Last resort. */
5364  #   define Strtoul(s, e, b)    strchr((s), '-') ? ULONG_MAX : (unsigned long)strtol((s), (e), (b))
5365  #endif
5366  #ifndef Atoul
5367  #   define Atoul(s)    Strtoul(s, NULL, 10)
5368  #endif
5369  
5370  
5371  /* if these never got defined, they need defaults */
5372  #ifndef PERL_SET_CONTEXT
5373  #  define PERL_SET_CONTEXT(i)        PERL_SET_INTERP(i)
5374  #endif
5375  
5376  #ifndef PERL_GET_CONTEXT
5377  #  define PERL_GET_CONTEXT        PERL_GET_INTERP
5378  #endif
5379  
5380  #ifndef PERL_GET_THX
5381  #  define PERL_GET_THX            ((void*)NULL)
5382  #endif
5383  
5384  #ifndef PERL_SET_THX
5385  #  define PERL_SET_THX(t)        NOOP
5386  #endif
5387  
5388  #ifndef PERL_SCRIPT_MODE
5389  #define PERL_SCRIPT_MODE "r"
5390  #endif
5391  
5392  /*
5393   * Some operating systems are stingy with stack allocation,
5394   * so perl may have to guard against stack overflow.
5395   */
5396  #ifndef PERL_STACK_OVERFLOW_CHECK
5397  #define PERL_STACK_OVERFLOW_CHECK()  NOOP
5398  #endif
5399  
5400  /*
5401   * Some nonpreemptive operating systems find it convenient to
5402   * check for asynchronous conditions after each op execution.
5403   * Keep this check simple, or it may slow down execution
5404   * massively.
5405   */
5406  
5407  #ifndef PERL_MICRO
5408  #    ifndef PERL_ASYNC_CHECK
5409  #        define PERL_ASYNC_CHECK() if (PL_sig_pending) despatch_signals()
5410  #    endif
5411  #endif
5412  
5413  #ifndef PERL_ASYNC_CHECK
5414  #   define PERL_ASYNC_CHECK()  NOOP
5415  #endif
5416  
5417  /*
5418   * On some operating systems, a memory allocation may succeed,
5419   * but put the process too close to the system's comfort limit.
5420   * In this case, PERL_ALLOC_CHECK frees the pointer and sets
5421   * it to NULL.
5422   */
5423  #ifndef PERL_ALLOC_CHECK
5424  #define PERL_ALLOC_CHECK(p)  NOOP
5425  #endif
5426  
5427  #ifdef HAS_SEM
5428  #   include <sys/ipc.h>
5429  #   include <sys/sem.h>
5430  #   ifndef HAS_UNION_SEMUN    /* Provide the union semun. */
5431      union semun {
5432      int        val;
5433      struct semid_ds    *buf;
5434      unsigned short    *array;
5435      };
5436  #   endif
5437  #   ifdef USE_SEMCTL_SEMUN
5438  #    ifdef IRIX32_SEMUN_BROKEN_BY_GCC
5439              union gccbug_semun {
5440          int             val;
5441          struct semid_ds *buf;
5442          unsigned short  *array;
5443          char            __dummy[5];
5444          };
5445  #           define semun gccbug_semun
5446  #    endif
5447  #       define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun)
5448  #   else
5449  #       ifdef USE_SEMCTL_SEMID_DS
5450  #           ifdef EXTRA_F_IN_SEMUN_BUF
5451  #               define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun.buff)
5452  #           else
5453  #               define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun.buf)
5454  #           endif
5455  #       endif
5456  #   endif
5457  #endif
5458  
5459  /*
5460   * Boilerplate macros for initializing and accessing interpreter-local
5461   * data from C.  All statics in extensions should be reworked to use
5462   * this, if you want to make the extension thread-safe.  See
5463   * ext/XS/APItest/APItest.xs for an example of the use of these macros,
5464   * and perlxs.pod for more.
5465   *
5466   * Code that uses these macros is responsible for the following:
5467   * 1. #define MY_CXT_KEY to a unique string, e.g.
5468   *    "DynaLoader::_guts" XS_VERSION
5469   *    XXX in the current implementation, this string is ignored.
5470   * 2. Declare a typedef named my_cxt_t that is a structure that contains
5471   *    all the data that needs to be interpreter-local.
5472   * 3. Use the START_MY_CXT macro after the declaration of my_cxt_t.
5473   * 4. Use the MY_CXT_INIT macro such that it is called exactly once
5474   *    (typically put in the BOOT: section).
5475   * 5. Use the members of the my_cxt_t structure everywhere as
5476   *    MY_CXT.member.
5477   * 6. Use the dMY_CXT macro (a declaration) in all the functions that
5478   *    access MY_CXT.
5479   */
5480  
5481  #if defined(PERL_IMPLICIT_CONTEXT)
5482  
5483  #ifdef PERL_GLOBAL_STRUCT_PRIVATE
5484  
5485  /* This must appear in all extensions that define a my_cxt_t structure,
5486   * right after the definition (i.e. at file scope).  The non-threads
5487   * case below uses it to declare the data as static. */
5488  #define START_MY_CXT
5489  #define MY_CXT_INDEX Perl_my_cxt_index(aTHX_ MY_CXT_KEY)
5490  
5491  /* Creates and zeroes the per-interpreter data.
5492   * (We allocate my_cxtp in a Perl SV so that it will be released when
5493   * the interpreter goes away.) */
5494  #define MY_CXT_INIT \
5495      my_cxt_t *my_cxtp = \
5496          (my_cxt_t*)Perl_my_cxt_init(aTHX_ MY_CXT_KEY, sizeof(my_cxt_t))
5497  #define MY_CXT_INIT_INTERP(my_perl) \
5498      my_cxt_t *my_cxtp = \
5499          (my_cxt_t*)Perl_my_cxt_init(my_perl, MY_CXT_KEY, sizeof(my_cxt_t))
5500  
5501  /* This declaration should be used within all functions that use the
5502   * interpreter-local data. */
5503  #define dMY_CXT    \
5504      my_cxt_t *my_cxtp = (my_cxt_t *)PL_my_cxt_list[MY_CXT_INDEX]
5505  #define dMY_CXT_INTERP(my_perl)    \
5506      my_cxt_t *my_cxtp = (my_cxt_t *)(my_perl)->Imy_cxt_list[MY_CXT_INDEX]
5507  
5508  /* Clones the per-interpreter data. */
5509  #define MY_CXT_CLONE \
5510      my_cxt_t *my_cxtp = (my_cxt_t*)SvPVX(newSV(sizeof(my_cxt_t)-1));\
5511      Copy(PL_my_cxt_list[MY_CXT_INDEX], my_cxtp, 1, my_cxt_t);\
5512      PL_my_cxt_list[MY_CXT_INDEX] = my_cxtp                \
5513  
5514  #else /* #ifdef PERL_GLOBAL_STRUCT_PRIVATE */
5515  
5516  /* This must appear in all extensions that define a my_cxt_t structure,
5517   * right after the definition (i.e. at file scope).  The non-threads
5518   * case below uses it to declare the data as static. */
5519  #define START_MY_CXT static int my_cxt_index = -1;
5520  
5521  /* This declaration should be used within all functions that use the
5522   * interpreter-local data. */
5523  #define dMY_CXT    \
5524      my_cxt_t *my_cxtp = (my_cxt_t *)PL_my_cxt_list[my_cxt_index]
5525  #define dMY_CXT_INTERP(my_perl)    \
5526      my_cxt_t *my_cxtp = (my_cxt_t *)(my_perl)->Imy_cxt_list[my_cxt_index]
5527  
5528  /* Creates and zeroes the per-interpreter data.
5529   * (We allocate my_cxtp in a Perl SV so that it will be released when
5530   * the interpreter goes away.) */
5531  #define MY_CXT_INIT \
5532      my_cxt_t *my_cxtp = \
5533          (my_cxt_t*)Perl_my_cxt_init(aTHX_ &my_cxt_index, sizeof(my_cxt_t))
5534  #define MY_CXT_INIT_INTERP(my_perl) \
5535      my_cxt_t *my_cxtp = \
5536          (my_cxt_t*)Perl_my_cxt_init(my_perl, &my_cxt_index, sizeof(my_cxt_t))
5537  
5538  /* Clones the per-interpreter data. */
5539  #define MY_CXT_CLONE \
5540      my_cxt_t *my_cxtp = (my_cxt_t*)SvPVX(newSV(sizeof(my_cxt_t)-1));\
5541      Copy(PL_my_cxt_list[my_cxt_index], my_cxtp, 1, my_cxt_t);\
5542      PL_my_cxt_list[my_cxt_index] = my_cxtp                \
5543  
5544  #endif /* #ifdef PERL_GLOBAL_STRUCT_PRIVATE */
5545  
5546  /* This macro must be used to access members of the my_cxt_t structure.
5547   * e.g. MYCXT.some_data */
5548  #define MY_CXT        (*my_cxtp)
5549  
5550  /* Judicious use of these macros can reduce the number of times dMY_CXT
5551   * is used.  Use is similar to pTHX, aTHX etc. */
5552  #define pMY_CXT        my_cxt_t *my_cxtp
5553  #define pMY_CXT_    pMY_CXT,
5554  #define _pMY_CXT    ,pMY_CXT
5555  #define aMY_CXT        my_cxtp
5556  #define aMY_CXT_    aMY_CXT,
5557  #define _aMY_CXT    ,aMY_CXT
5558  
5559  #else /* PERL_IMPLICIT_CONTEXT */
5560  
5561  #define START_MY_CXT    static my_cxt_t my_cxt;
5562  #define dMY_CXT_SV    dNOOP
5563  #define dMY_CXT        dNOOP
5564  #define MY_CXT_INIT    NOOP
5565  #define MY_CXT_CLONE    NOOP
5566  #define MY_CXT        my_cxt
5567  
5568  #define pMY_CXT        void
5569  #define pMY_CXT_
5570  #define _pMY_CXT
5571  #define aMY_CXT
5572  #define aMY_CXT_
5573  #define _aMY_CXT
5574  
5575  #endif /* !defined(PERL_IMPLICIT_CONTEXT) */
5576  
5577  #ifdef I_FCNTL
5578  #  include <fcntl.h>
5579  #endif
5580  
5581  #ifdef __Lynx__
5582  #  include <fcntl.h>
5583  #endif
5584  
5585  #ifdef I_SYS_FILE
5586  #  include <sys/file.h>
5587  #endif
5588  
5589  #if defined(HAS_FLOCK) && !defined(HAS_FLOCK_PROTO)
5590  int flock(int fd, int op);
5591  #endif
5592  
5593  #ifndef O_RDONLY
5594  /* Assume UNIX defaults */
5595  #    define O_RDONLY    0000
5596  #    define O_WRONLY    0001
5597  #    define O_RDWR    0002
5598  #    define O_CREAT    0100
5599  #endif
5600  
5601  #ifndef O_BINARY
5602  #  define O_BINARY 0
5603  #endif
5604  
5605  #ifndef O_TEXT
5606  #  define O_TEXT 0
5607  #endif
5608  
5609  #if O_TEXT != O_BINARY
5610      /* If you have different O_TEXT and O_BINARY and you are a CLRF shop,
5611       * that is, you are somehow DOSish. */
5612  #   if defined(__BEOS__) || defined(__VOS__) || defined(__CYGWIN__)
5613      /* BeOS has O_TEXT != O_BINARY but O_TEXT and O_BINARY have no effect;
5614       * BeOS is always UNIXoid (LF), not DOSish (CRLF). */
5615      /* VOS has O_TEXT != O_BINARY, and they have effect,
5616       * but VOS always uses LF, never CRLF. */
5617      /* If you have O_TEXT different from your O_BINARY but you still are
5618       * not a CRLF shop. */
5619  #       undef PERLIO_USING_CRLF
5620  #   else
5621      /* If you really are DOSish. */
5622  #      define PERLIO_USING_CRLF 1
5623  #   endif
5624  #endif
5625  
5626  #ifdef IAMSUID
5627  
5628  #ifdef I_SYS_STATVFS
5629  #   if defined(PERL_SCO) && !defined(_SVID3)
5630  #       define _SVID3
5631  #   endif
5632  #   include <sys/statvfs.h>     /* for f?statvfs() */
5633  #endif
5634  #ifdef I_SYS_MOUNT
5635  #   include <sys/mount.h>       /* for *BSD f?statfs() */
5636  #endif
5637  #ifdef I_MNTENT
5638  #   include <mntent.h>          /* for getmntent() */
5639  #endif
5640  #ifdef I_SYS_STATFS
5641  #   include <sys/statfs.h>      /* for some statfs() */
5642  #endif
5643  #ifdef I_SYS_VFS
5644  #  ifdef __sgi
5645  #    define sv IRIX_sv        /* kludge: IRIX has an sv of its own */
5646  #  endif
5647  #    include <sys/vfs.h>    /* for some statfs() */
5648  #  ifdef __sgi
5649  #    undef IRIX_sv
5650  #  endif
5651  #endif
5652  #ifdef I_USTAT
5653  #   include <ustat.h>           /* for ustat() */
5654  #endif
5655  
5656  #if !defined(PERL_MOUNT_NOSUID) && defined(MOUNT_NOSUID)
5657  #    define PERL_MOUNT_NOSUID MOUNT_NOSUID
5658  #endif
5659  #if !defined(PERL_MOUNT_NOSUID) && defined(MNT_NOSUID)
5660  #    define PERL_MOUNT_NOSUID MNT_NOSUID
5661  #endif
5662  #if !defined(PERL_MOUNT_NOSUID) && defined(MS_NOSUID)
5663  #   define PERL_MOUNT_NOSUID MS_NOSUID
5664  #endif
5665  #if !defined(PERL_MOUNT_NOSUID) && defined(M_NOSUID)
5666  #   define PERL_MOUNT_NOSUID M_NOSUID
5667  #endif
5668  
5669  #if !defined(PERL_MOUNT_NOEXEC) && defined(MOUNT_NOEXEC)
5670  #    define PERL_MOUNT_NOEXEC MOUNT_NOEXEC
5671  #endif
5672  #if !defined(PERL_MOUNT_NOEXEC) && defined(MNT_NOEXEC)
5673  #    define PERL_MOUNT_NOEXEC MNT_NOEXEC
5674  #endif
5675  #if !defined(PERL_MOUNT_NOEXEC) && defined(MS_NOEXEC)
5676  #   define PERL_MOUNT_NOEXEC MS_NOEXEC
5677  #endif
5678  #if !defined(PERL_MOUNT_NOEXEC) && defined(M_NOEXEC)
5679  #   define PERL_MOUNT_NOEXEC M_NOEXEC
5680  #endif
5681  
5682  #endif /* IAMSUID */
5683  
5684  #ifdef I_LIBUTIL
5685  #   include <libutil.h>        /* setproctitle() in some FreeBSDs */
5686  #endif
5687  
5688  #ifndef EXEC_ARGV_CAST
5689  #define EXEC_ARGV_CAST(x) x
5690  #endif
5691  
5692  #define IS_NUMBER_IN_UV              0x01 /* number within UV range (maybe not
5693                            int).  value returned in pointed-
5694                            to UV */
5695  #define IS_NUMBER_GREATER_THAN_UV_MAX 0x02 /* pointed to UV undefined */
5696  #define IS_NUMBER_NOT_INT          0x04 /* saw . or E notation */
5697  #define IS_NUMBER_NEG              0x08 /* leading minus sign */
5698  #define IS_NUMBER_INFINITY          0x10 /* this is big */
5699  #define IS_NUMBER_NAN                 0x20 /* this is not */
5700  
5701  #define GROK_NUMERIC_RADIX(sp, send) grok_numeric_radix(sp, send)
5702  
5703  /* Input flags: */
5704  #define PERL_SCAN_ALLOW_UNDERSCORES   0x01 /* grok_??? accept _ in numbers */
5705  #define PERL_SCAN_DISALLOW_PREFIX     0x02 /* grok_??? reject 0x in hex etc */
5706  #define PERL_SCAN_SILENT_ILLDIGIT     0x04 /* grok_??? not warn about illegal digits */
5707  /* Output flags: */
5708  #define PERL_SCAN_GREATER_THAN_UV_MAX 0x02 /* should this merge with above? */
5709  
5710  /* to let user control profiling */
5711  #ifdef PERL_GPROF_CONTROL
5712  extern void moncontrol(int);
5713  #define PERL_GPROF_MONCONTROL(x) moncontrol(x)
5714  #else
5715  #define PERL_GPROF_MONCONTROL(x)
5716  #endif
5717  
5718  #ifdef UNDER_CE
5719  #include "wince.h"
5720  #endif
5721  
5722  /* ISO 6429 NEL - C1 control NExt Line */
5723  /* See http://www.unicode.org/unicode/reports/tr13/ */
5724  #ifdef EBCDIC    /* In EBCDIC NEL is just an alias for LF */
5725  #   if '^' == 95    /* CP 1047: MVS OpenEdition - OS/390 - z/OS */
5726  #       define NEXT_LINE_CHAR    0x15
5727  #   else        /* CDRA */
5728  #       define NEXT_LINE_CHAR    0x25
5729  #   endif
5730  #else
5731  #   define NEXT_LINE_CHAR    0x85
5732  #endif
5733  
5734  /* The UTF-8 bytes of the Unicode LS and PS, U+2028 and U+2029 */
5735  #define UNICODE_LINE_SEPA_0    0xE2
5736  #define UNICODE_LINE_SEPA_1    0x80
5737  #define UNICODE_LINE_SEPA_2    0xA8
5738  #define UNICODE_PARA_SEPA_0    0xE2
5739  #define UNICODE_PARA_SEPA_1    0x80
5740  #define UNICODE_PARA_SEPA_2    0xA9
5741  
5742  #ifndef PIPESOCK_MODE
5743  #  define PIPESOCK_MODE
5744  #endif
5745  
5746  #ifndef SOCKET_OPEN_MODE
5747  #  define SOCKET_OPEN_MODE    PIPESOCK_MODE
5748  #endif
5749  
5750  #ifndef PIPE_OPEN_MODE
5751  #  define PIPE_OPEN_MODE    PIPESOCK_MODE
5752  #endif
5753  
5754  #define PERL_MAGIC_UTF8_CACHESIZE    2
5755  
5756  #define PERL_UNICODE_STDIN_FLAG            0x0001
5757  #define PERL_UNICODE_STDOUT_FLAG        0x0002
5758  #define PERL_UNICODE_STDERR_FLAG        0x0004
5759  #define PERL_UNICODE_IN_FLAG            0x0008
5760  #define PERL_UNICODE_OUT_FLAG            0x0010
5761  #define PERL_UNICODE_ARGV_FLAG            0x0020
5762  #define PERL_UNICODE_LOCALE_FLAG        0x0040
5763  #define PERL_UNICODE_WIDESYSCALLS_FLAG        0x0080 /* for Sarathy */
5764  #define PERL_UNICODE_UTF8CACHEASSERT_FLAG    0x0100
5765  
5766  #define PERL_UNICODE_STD_FLAG        \
5767      (PERL_UNICODE_STDIN_FLAG    | \
5768       PERL_UNICODE_STDOUT_FLAG    | \
5769       PERL_UNICODE_STDERR_FLAG)
5770  
5771  #define PERL_UNICODE_INOUT_FLAG        \
5772      (PERL_UNICODE_IN_FLAG    | \
5773       PERL_UNICODE_OUT_FLAG)
5774  
5775  #define PERL_UNICODE_DEFAULT_FLAGS    \
5776      (PERL_UNICODE_STD_FLAG        | \
5777       PERL_UNICODE_INOUT_FLAG    | \
5778       PERL_UNICODE_LOCALE_FLAG)
5779  
5780  #define PERL_UNICODE_ALL_FLAGS            0x01ff
5781  
5782  #define PERL_UNICODE_STDIN            'I'
5783  #define PERL_UNICODE_STDOUT            'O'
5784  #define PERL_UNICODE_STDERR            'E'
5785  #define PERL_UNICODE_STD            'S'
5786  #define PERL_UNICODE_IN                'i'
5787  #define PERL_UNICODE_OUT            'o'
5788  #define PERL_UNICODE_INOUT            'D'
5789  #define PERL_UNICODE_ARGV            'A'
5790  #define PERL_UNICODE_LOCALE            'L'
5791  #define PERL_UNICODE_WIDESYSCALLS        'W'
5792  #define PERL_UNICODE_UTF8CACHEASSERT        'a'
5793  
5794  #define PERL_SIGNALS_UNSAFE_FLAG    0x0001
5795  
5796  /* From sigaction(2) (FreeBSD man page):
5797   * | Signal routines normally execute with the signal that
5798   * | caused their invocation blocked, but other signals may
5799   * | yet occur.
5800   * Emulation of this behavior (from within Perl) is enabled
5801   * by defining PERL_BLOCK_SIGNALS.
5802   */
5803  #define PERL_BLOCK_SIGNALS
5804  
5805  #if defined(HAS_SIGPROCMASK) && defined(PERL_BLOCK_SIGNALS)
5806  #   define PERL_BLOCKSIG_ADD(set,sig) \
5807      sigset_t set; sigemptyset(&(set)); sigaddset(&(set), sig)
5808  #   define PERL_BLOCKSIG_BLOCK(set) \
5809      sigprocmask(SIG_BLOCK, &(set), NULL)
5810  #   define PERL_BLOCKSIG_UNBLOCK(set) \
5811      sigprocmask(SIG_UNBLOCK, &(set), NULL)
5812  #endif /* HAS_SIGPROCMASK && PERL_BLOCK_SIGNALS */
5813  
5814  /* How about the old style of sigblock()? */
5815  
5816  #ifndef PERL_BLOCKSIG_ADD
5817  #   define PERL_BLOCKSIG_ADD(set, sig)    NOOP
5818  #endif
5819  #ifndef PERL_BLOCKSIG_BLOCK
5820  #   define PERL_BLOCKSIG_BLOCK(set)    NOOP
5821  #endif
5822  #ifndef PERL_BLOCKSIG_UNBLOCK
5823  #   define PERL_BLOCKSIG_UNBLOCK(set)    NOOP
5824  #endif
5825  
5826  /* Use instead of abs() since abs() forces its argument to be an int,
5827   * but also beware since this evaluates its argument twice, so no x++. */
5828  #define PERL_ABS(x) ((x) < 0 ? -(x) : (x))
5829  
5830  #if defined(__DECC) && defined(__osf__)
5831  #pragma message disable (mainparm) /* Perl uses the envp in main(). */
5832  #endif
5833  
5834  #define do_open(g, n, l, a, rm, rp, sf) \
5835      do_openn(g, n, l, a, rm, rp, sf, (SV **) NULL, 0)
5836  #ifdef PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION
5837  #  define do_exec(cmd)            do_exec3(cmd,0,0)
5838  #endif
5839  #ifdef OS2
5840  #  define do_aexec            Perl_do_aexec
5841  #else
5842  #  define do_aexec(really, mark,sp)    do_aexec5(really, mark, sp, 0, 0)
5843  #endif
5844  
5845  #if defined(OEMVS)
5846  #define NO_ENV_ARRAY_IN_MAIN
5847  #endif
5848  
5849  /* These are used by Perl_pv_escape() and Perl_pv_pretty() 
5850   * are here so that they are available throughout the core 
5851   * NOTE that even though some are for _escape and some for _pretty
5852   * there must not be any clashes as the flags from _pretty are
5853   * passed straight through to _escape.
5854   */
5855  
5856  #define PERL_PV_ESCAPE_QUOTE        0x0001
5857  #define PERL_PV_PRETTY_QUOTE        PERL_PV_ESCAPE_QUOTE
5858  
5859  #define PERL_PV_PRETTY_ELLIPSES     0x0002
5860  #define PERL_PV_PRETTY_LTGT         0x0004
5861  
5862  #define PERL_PV_ESCAPE_FIRSTCHAR    0x0008
5863  
5864  #define PERL_PV_ESCAPE_UNI          0x0100     
5865  #define PERL_PV_ESCAPE_UNI_DETECT   0x0200
5866  
5867  #define PERL_PV_ESCAPE_ALL        0x1000
5868  #define PERL_PV_ESCAPE_NOBACKSLASH  0x2000
5869  #define PERL_PV_ESCAPE_NOCLEAR      0x4000
5870  #define PERL_PV_ESCAPE_RE           0x8000
5871  
5872  #define PERL_PV_PRETTY_NOCLEAR      PERL_PV_ESCAPE_NOCLEAR
5873  
5874  /* used by pv_display in dump.c*/
5875  #define PERL_PV_PRETTY_DUMP  PERL_PV_PRETTY_ELLIPSES|PERL_PV_PRETTY_QUOTE
5876  #define PERL_PV_PRETTY_REGPROP PERL_PV_PRETTY_ELLIPSES|PERL_PV_PRETTY_LTGT|PERL_PV_ESCAPE_RE
5877  
5878  /*
5879  
5880     (KEEP THIS LAST IN perl.h!)
5881  
5882     Mention
5883  
5884     NV_PRESERVES_UV
5885  
5886     HAS_MKSTEMP
5887     HAS_MKSTEMPS
5888     HAS_MKDTEMP
5889  
5890     HAS_GETCWD
5891  
5892     HAS_MMAP
5893     HAS_MPROTECT
5894     HAS_MSYNC
5895     HAS_MADVISE
5896     HAS_MUNMAP
5897     I_SYSMMAN
5898     Mmap_t
5899  
5900     NVef
5901     NVff
5902     NVgf
5903  
5904     HAS_UALARM
5905     HAS_USLEEP
5906  
5907     HAS_SETITIMER
5908     HAS_GETITIMER
5909  
5910     HAS_SENDMSG
5911     HAS_RECVMSG
5912     HAS_READV
5913     HAS_WRITEV
5914     I_SYSUIO
5915     HAS_STRUCT_MSGHDR
5916     HAS_STRUCT_CMSGHDR
5917  
5918     HAS_NL_LANGINFO
5919  
5920     HAS_DIRFD
5921  
5922     so that Configure picks them up.
5923  
5924     (KEEP THIS LAST IN perl.h!)
5925  
5926  */
5927  
5928  #endif /* Include guard */


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