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