/* Area: ffi_call
Purpose: Check return value double.
Limitations: none.
PR: none.
Originator: <andreast@gcc.gnu.org> 20050212 */
/* { dg-do run } */
#include "ffitest.h"
static double return_dbl(double dbl)
{
return 2 * dbl;
}
int main (void)
{
ffi_cif cif;
ffi_type *args[MAX_ARGS];
void *values[MAX_ARGS];
double dbl, rdbl;
args[0] = &ffi_type_double;
values[0] = &dbl;
/* Initialize the cif */
CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 1,
&ffi_type_double, args) == FFI_OK);
for (dbl = -127.3; dbl < 127; dbl++)
{
ffi_call(&cif, FFI_FN(return_dbl), &rdbl, values);
printf ("%f vs %f\n", rdbl, return_dbl(dbl));
CHECK(rdbl == 2 * dbl);
}
exit(0);
}
