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
10static 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 }
18typedef double (*cls_ret_double)(double);
19
20int main (void)
21{
22  ffi_cif cif;
23#ifndef USING_MMAP
24  static ffi_closure cl;
25#endif
26  ffi_closure *pcl;
27  ffi_type * cl_arg_types[2];
28  double res;
29
30#ifdef USING_MMAP
31  pcl = allocate_mmap (sizeof(ffi_closure));
32#else
33  pcl = &cl;
34#endif
35
36  cl_arg_types[0] = &ffi_type_double;
37  cl_arg_types[1] = NULL;
38
39  /* Initialize the cif */
40  CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 1,
41		     &ffi_type_double, cl_arg_types) == FFI_OK);
42
43  CHECK(ffi_prep_closure(pcl, &cif, cls_ret_double_fn, NULL)  == FFI_OK);
44
45  res = (*((cls_ret_double)pcl))(21474.789);
46  /* { dg-output "21474.789000: 21474.789000" } */
47  printf("res: %.6f\n", res);
48  /* { dg-output "\nres: 21474.789000" } */
49
50  exit(0);
51}
52