glibc/benchtests/bench-memrchr.c

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2013-08-29 20:38:51 +02:00
/* Measure memrchr functions.
Copyright (C) 2013 Free Software Foundation, Inc.
This file is part of the GNU C Library.
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/>. */
#define TEST_MAIN
#define TEST_NAME "memrchr"
#include "bench-string.h"
typedef char *(*proto_t) (const char *, int, size_t);
char *simple_memrchr (const char *, int, size_t);
IMPL (simple_memrchr, 0)
IMPL (memrchr, 1)
char *
simple_memrchr (const char *s, int c, size_t n)
{
s = s + n;
while (n--)
if (*--s == (char) c)
return (char *) s;
return NULL;
}
#define USE_AS_MEMRCHR
#include "bench-memchr.c"