Ruby: ext/fiddle/libffi-3.2.1/testsuite/libffi.call/return_uc.c Source File

Ruby 3.0.5p211 (2022-11-24 revision ba5cf0f7c52d4d35cc6a173c89eda98ceffa2dcf)

return_uc.c
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1/* Area: ffi_call
2 Purpose: Check return value unsigned char.
3 Limitations: none.
4 PR: none.
5 Originator: From the original ffitest.c */
6
7/* { dg-do run } */
8#include "ffitest.h"
9
10static unsigned char return_uc(unsigned char uc)
11{
12 return uc;
13}
14
15 int main (void)
16{
17 ffi_cif cif;
18 ffi_type *args[MAX_ARGS];
19 void *values[MAX_ARGS];
20 ffi_arg rint;
21
22 unsigned char uc;
23
24 args[0] = &ffi_type_uchar;
25 values[0] = &uc;
26
27 /* Initialize the cif */
28 CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 1,
29 &ffi_type_uchar, args) == FFI_OK);
30
31 for (uc = (unsigned char) '\x00';
32 uc < (unsigned char) '\xff'; uc++)
33 {
34 ffi_call(&cif, FFI_FN(return_uc), &rint, values);
35 CHECK((unsigned char)rint == uc);
36 }
37 exit(0);
38}
ffi_call
void ffi_call(ffi_cif *cif, void(*fn)(void), void *rvalue, void **avalue)
Definition: ffi.c:813
ffi_arg
unsigned long ffi_arg
Definition: ffitarget.h:30
FFI_DEFAULT_ABI
@ FFI_DEFAULT_ABI
Definition: ffitarget.h:38
CHECK
#define CHECK(sub)
Definition: compile.c:429
ffitest.h
MAX_ARGS
#define MAX_ARGS
Definition: function.c:17
ffi_prep_cif
ffi_status ffi_prep_cif(ffi_cif *cif, ffi_abi abi, unsigned int nargs, ffi_type *rtype, ffi_type **atypes)
Definition: prep_cif.c:226
main
int main(void)
Definition: return_uc.c:15