Ruby 2.7.0p0(2019-12-25revision647ee6f091eafcce70ffb75ddf7e121e192ab217)

return_dbl1.c
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1 /* Area: ffi_call
2 Purpose: Check return value double.
3 Limitations: none.
4 PR: none.
5 Originator: <andreast@gcc.gnu.org> 20050212 */
6
7 /* { dg-do run } */
8 #include "ffitest.h"
9
10 static double return_dbl(double dbl1, float fl2, unsigned int in3, double dbl4)
11 {
12 return dbl1 + fl2 + in3 + dbl4;
13 }
14 int main (void)
15 {
16 ffi_cif cif;
17 ffi_type *args[MAX_ARGS];
18 void *values[MAX_ARGS];
19 double dbl1, dbl4, rdbl;
20 float fl2;
21 unsigned int in3;
22 args[0] = &ffi_type_double;
23 args[1] = &ffi_type_float;
24 args[2] = &ffi_type_uint;
25 args[3] = &ffi_type_double;
26 values[0] = &dbl1;
27 values[1] = &fl2;
28 values[2] = &in3;
29 values[3] = &dbl4;
30
31 /* Initialize the cif */
32 CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 4,
33 &ffi_type_double, args) == FFI_OK);
34 dbl1 = 127.0;
35 fl2 = 128.0;
36 in3 = 255;
37 dbl4 = 512.7;
38
39 ffi_call(&cif, FFI_FN(return_dbl), &rdbl, values);
40 printf ("%f vs %f\n", rdbl, return_dbl(dbl1, fl2, in3, dbl4));
41 CHECK(rdbl == dbl1 + fl2 + in3 + dbl4);
42 exit(0);
43 }
printf
int int int printf(const char *__restrict,...) __attribute__((__format__(__printf__
exit
void exit(int __status) __attribute__((__noreturn__))
ffitest.h
CHECK
#define CHECK(sub)
Definition: compile.c:448
FFI_DEFAULT_ABI
@ FFI_DEFAULT_ABI
Definition: ffitarget.h:38
main
int main(void)
Definition: return_dbl1.c:14
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
ffi_call
void ffi_call(ffi_cif *cif, void(*fn)(void), void *rvalue, void **avalue)
Definition: ffi.c:813