Ruby  2.7.2p137(2020-10-01revision5445e0435260b449decf2ac16f9d09bae3cafe72)
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 
11 static 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_arg
unsigned long ffi_arg
Definition: ffitarget.h:30
int
__inline__ int
Definition: rb_mjit_min_header-2.7.2.h:2877
ABI_NUM
#define ABI_NUM
Definition: ffitest.h:35
strlen
size_t strlen(const char *)
main
int main(void)
Definition: strlen3.c:16
ffitest.h
rint
double rint(double)
CHECK
#define CHECK(sub)
Definition: compile.c:448
ABI_ATTR
#define ABI_ATTR
Definition: ffitest.h:36
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
MAX_ARGS
#define MAX_ARGS
Definition: function.c:15
exit
void exit(int __status) __attribute__((__noreturn__))
ffi_call
void ffi_call(ffi_cif *cif, void(*fn)(void), void *rvalue, void **avalue)
Definition: ffi.c:813