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
10static double return_dbl(double dbl)
11{
12  printf ("%f\n", dbl);
13  return 2 * dbl;
14}
15int main (void)
16{
17  ffi_cif cif;
18  ffi_type *args[MAX_ARGS];
19  void *values[MAX_ARGS];
20  double dbl, rdbl;
21
22  args[0] = &ffi_type_double;
23  values[0] = &dbl;
24
25  /* Initialize the cif */
26  CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 1,
27		     &ffi_type_double, args) == FFI_OK);
28
29  for (dbl = -127.3; dbl <  127; dbl++)
30    {
31      ffi_call(&cif, FFI_FN(return_dbl), &rdbl, values);
32      printf ("%f vs %f\n", rdbl, return_dbl(dbl));
33      CHECK(rdbl == 2 * dbl);
34    }
35  exit(0);
36}
37