1 /* Area: closure_call
2 Purpose: Check return value double.
3 Limitations: none.
4 PR: none.
5 Originator: <andreast@gcc.gnu.org> 20030828 */
6
7 /* { dg-do run } */
8 #include "ffitest.h"
9
cls_ret_double_fn(ffi_cif * cif __UNUSED__,void * resp,void ** args,void * userdata __UNUSED__)10 static void cls_ret_double_fn(ffi_cif* cif __UNUSED__, void* resp, void** args,
11 void* userdata __UNUSED__)
12 {
13 *(double *)resp = *(double *)args[0];
14
15 printf("%f: %f\n",*(double *)args[0],
16 *(double *)resp);
17 }
18 typedef double (*cls_ret_double)(double);
19
main(void)20 int main (void)
21 {
22 ffi_cif cif;
23 void *code;
24 ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
25 ffi_type * cl_arg_types[2];
26 double res;
27
28 cl_arg_types[0] = &ffi_type_double;
29 cl_arg_types[1] = NULL;
30
31 /* Initialize the cif */
32 CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 1,
33 &ffi_type_double, cl_arg_types) == FFI_OK);
34
35 CHECK(ffi_prep_closure_loc(pcl, &cif, cls_ret_double_fn, NULL, code) == FFI_OK);
36
37 res = (*((cls_ret_double)code))(21474.789);
38 /* { dg-output "21474.789000: 21474.789000" } */
39 printf("res: %.6f\n", res);
40 /* { dg-output "\nres: 21474.789000" } */
41
42 exit(0);
43 }
44