glibc/benchtests/bench-strcspn.c

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/* Measure strcspn functions.
Copyright (C) 2013-2014 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 STRPBRK_RESULT(s, pos) (pos)
#define RES_TYPE size_t
#define TEST_MAIN
#define TEST_NAME "strcspn"
#include "bench-string.h"
typedef size_t (*proto_t) (const char *, const char *);
size_t simple_strcspn (const char *, const char *);
size_t stupid_strcspn (const char *, const char *);
IMPL (stupid_strcspn, 0)
IMPL (simple_strcspn, 0)
IMPL (strcspn, 1)
size_t
simple_strcspn (const char *s, const char *rej)
{
const char *r, *str = s;
char c;
while ((c = *s++) != '\0')
for (r = rej; *r != '\0'; ++r)
if (*r == c)
return s - str - 1;
return s - str - 1;
}
size_t
stupid_strcspn (const char *s, const char *rej)
{
size_t ns = strlen (s), nrej = strlen (rej);
size_t i, j;
for (i = 0; i < ns; ++i)
for (j = 0; j < nrej; ++j)
if (s[i] == rej[j])
return i;
return i;
}
#include "bench-strpbrk.c"