1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
/* 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;
printf ("%Lf\n", ldblit(f));
ld = 666;
ffi_call(&cif, FFI_FN(ldblit), &ld, values);
printf ("%Lf, %Lf, %Lf, %Lf\n", ld, ldblit(f), ld - ldblit(f), LDBL_EPSILON);
/* 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);
}
|
