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/* 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;
}
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