59 lines
1.4 KiB
C
59 lines
1.4 KiB
C
|
/* Area: ffi_call
|
||
|
|
Purpose: Check return value long double.
|
||
|
|
Limitations: none.
|
||
|
|
PR: none.
|
||
|
|
Originator: From the original ffitest.c */
|
||
|
|
|
||
|
|
/* { dg-excess-errors "fails" { target x86_64-*-mingw* x86_64-*-cygwin* } } */
|
||
|
|
/* { dg-do run { xfail x86_64-*-mingw* x86_64-*-cygwin* } } */
|
||
|
|
|
||
|
|
#include "ffitest.h"
|
||
|
|
#include "float.h"
|
||
|
|
|
||
|
|
static long double ldblit(float f)
|
||
|
|
{
|
||
|
|
return (long double) (((long double) f)/ (long double) 3.0);
|
||
|
|
}
|
||
|
|
|
||
|
|
int main (void)
|
||
|
|
{
|
||
|
|
ffi_cif cif;
|
||
|
|
ffi_type *args[MAX_ARGS];
|
||
|
|
void *values[MAX_ARGS];
|
||
|
|
float f;
|
||
|
|
long double ld;
|
||
|
|
|
||
|
|
args[0] = &ffi_type_float;
|
||
|
|
values[0] = &f;
|
||
|
|
|
||
|
|
/* Initialize the cif */
|
||
|
|
CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 1,
|
||
|
|
&ffi_type_longdouble, args) == FFI_OK);
|
||
|
|
|
||
|
|
f = 3.14159;
|
||
|
|
|
||
|
|
#if 1
|
||
|
|
/* This is ifdef'd out for now. long double support under SunOS/gcc
|
||
|
|
is pretty much non-existent. You'll get the odd bus error in library
|
||
|
|
routines like printf(). */
|
||
|
|
printf ("%Lf\n", ldblit(f));
|
||
|
|
#endif
|
||
|
|
ld = 666;
|
||
|
|
ffi_call(&cif, FFI_FN(ldblit), &ld, values);
|
||
|
|
|
||
|
|
#if 1
|
||
|
|
/* This is ifdef'd out for now. long double support under SunOS/gcc
|
||
|
|
is pretty much non-existent. You'll get the odd bus error in library
|
||
|
|
routines like printf(). */
|
||
|
|
printf ("%Lf, %Lf, %Lf, %Lf\n", ld, ldblit(f), ld - ldblit(f), LDBL_EPSILON);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* These are not always the same!! Check for a reasonable delta */
|
||
|
|
if (ld - ldblit(f) < LDBL_EPSILON)
|
||
|
|
puts("long double return value tests ok!");
|
||
|
|
else
|
||
|
|
CHECK(0);
|
||
|
|
|
||
|
|
exit(0);
|
||
|
|
}
|