mirror of
git://sourceware.org/git/glibc.git
synced 2024-12-27 04:41:02 +08:00
64 lines
1.9 KiB
C
64 lines
1.9 KiB
C
/* Copyright (C) 1994-2013 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Joel Sherrill (jsherril@redstone-emh2.army.mil),
|
|
On-Line Applications Research Corporation.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
|
|
int
|
|
main (void)
|
|
{
|
|
int failures = 0;
|
|
int i;
|
|
|
|
auto void try (const char *name, long long int param, int value,
|
|
int expected);
|
|
|
|
void try (const char *name, long long int param, int value, int expected)
|
|
{
|
|
if (value != expected)
|
|
{
|
|
printf ("%s(%#llx) expected %d got %d\n",
|
|
name, param, expected, value);
|
|
++failures;
|
|
}
|
|
else
|
|
printf ("%s(%#llx) as expected %d\n", name, param, value);
|
|
}
|
|
|
|
#define TEST(fct, type) \
|
|
try (#fct, 0, fct ((type) 0), 0); \
|
|
for (i=0 ; i < 8 * sizeof (type); i++) \
|
|
try (#fct, 1ll << i, fct (((type) 1) << i), i + 1); \
|
|
for (i=0 ; i < 8 * sizeof (type) ; i++) \
|
|
try (#fct, (~((type) 0) >> i) << i, fct ((~((type) 0) >> i) << i), i + 1);\
|
|
try (#fct, 0x80008000, fct ((type) 0x80008000), 16)
|
|
|
|
TEST (ffs, int);
|
|
TEST (ffsl, long int);
|
|
TEST (ffsll, long long int);
|
|
|
|
if (failures)
|
|
printf ("Test FAILED! %d failure%s.\n", failures, &"s"[failures == 1]);
|
|
else
|
|
puts ("Test succeeded.");
|
|
|
|
return failures;
|
|
}
|