Ruby: ext/fiddle/libffi-3.2.1/testsuite/libffi.call/return_fl3.c Source File

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

return_fl3.c
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1/* Area: ffi_call
2 Purpose: Check return value float.
3 Limitations: none.
4 PR: none.
5 Originator: <andreast@gcc.gnu.org> 20050212 */
6
7/* { dg-do run } */
8#include "ffitest.h"
9
10static float return_fl(float fl1, float fl2, unsigned int in3, float fl4)
11{
12 return fl1 + fl2 + in3 + fl4;
13}
14 int main (void)
15{
16 ffi_cif cif;
17 ffi_type *args[MAX_ARGS];
18 void *values[MAX_ARGS];
19 float fl1, fl2, fl4, rfl;
20 unsigned int in3;
21 args[0] = &ffi_type_float;
22 args[1] = &ffi_type_float;
23 args[2] = &ffi_type_uint;
24 args[3] = &ffi_type_float;
25 values[0] = &fl1;
26 values[1] = &fl2;
27 values[2] = &in3;
28 values[3] = &fl4;
29
30 /* Initialize the cif */
31 CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 4,
32 &ffi_type_float, args) == FFI_OK);
33 fl1 = 127.0;
34 fl2 = 128.0;
35 in3 = 255;
36 fl4 = 512.7;
37
38 ffi_call(&cif, FFI_FN(return_fl), &rfl, values);
39 printf ("%f vs %f\n", rfl, return_fl(fl1, fl2, in3, fl4));
40 CHECK(rfl == fl1 + fl2 + in3 + fl4);
41 exit(0);
42}
ffi_call
void ffi_call(ffi_cif *cif, void(*fn)(void), void *rvalue, void **avalue)
Definition: ffi.c:813
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_fl3.c:14