Ruby: ext/fiddle/libffi-3.2.1/testsuite/libffi.call/strlen3.c Source File

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

strlen3.c
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1/* Area: ffi_call
2 Purpose: Check strlen function call with additional arguments.
3 Limitations: none.
4 PR: none.
5 Originator: From the original ffitest.c */
6
7/* { dg-do run } */
8
9#include "ffitest.h"
10
11static size_t ABI_ATTR my_f(float a, char *s)
12{
13 return (size_t) ((int) strlen(s) + (int) a);
14}
15
16 int main (void)
17{
18 ffi_cif cif;
19 ffi_type *args[MAX_ARGS];
20 void *values[MAX_ARGS];
21 ffi_arg rint;
22 char *s;
23 float v2;
24 args[1] = &ffi_type_pointer;
25 args[0] = &ffi_type_float;
26 values[1] = (void*) &s;
27 values[0] = (void*) &v2;
28
29 /* Initialize the cif */
30 CHECK(ffi_prep_cif(&cif, ABI_NUM, 2,
31 &ffi_type_sint, args) == FFI_OK);
32
33 s = "a";
34 v2 = 0.0;
35 ffi_call(&cif, FFI_FN(my_f), &rint, values);
36 CHECK(rint == 1);
37
38 s = "1234567";
39 v2 = -1.0;
40 ffi_call(&cif, FFI_FN(my_f), &rint, values);
41 CHECK(rint == 6);
42
43 s = "1234567890123456789012345";
44 v2 = 1.0;
45 ffi_call(&cif, FFI_FN(my_f), &rint, values);
46 CHECK(rint == 26);
47
48 exit(0);
49}
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
CHECK
#define CHECK(sub)
Definition: compile.c:429
ffitest.h
ABI_NUM
#define ABI_NUM
Definition: ffitest.h:35
ABI_ATTR
#define ABI_ATTR
Definition: ffitest.h:36
MAX_ARGS
#define MAX_ARGS
Definition: function.c:17
int
typedef int(ZCALLBACK *close_file_func) OF((voidpf opaque
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
strlen
size_t strlen(const char *)
main
int main(void)
Definition: strlen3.c:16