66 lines
2.2 KiB
C
66 lines
2.2 KiB
C
/****************************************************************************
|
|
* libs/libc/string/lib_strchrnul.c
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*
|
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
|
* contributor license agreements. See the NOTICE file distributed with
|
|
* this work for additional information regarding copyright ownership. The
|
|
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
|
* "License"); you may not use this file except in compliance with the
|
|
* License. You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
* License for the specific language governing permissions and limitations
|
|
* under the License.
|
|
*
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
|
|
#include <string.h>
|
|
|
|
#include "libc.h"
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: strchrnul
|
|
*
|
|
* Description:
|
|
* The strchrnul() function locates the first occurrence of 'c' (converted
|
|
* to a char) in the string pointed to by 's'. The terminating null byte is
|
|
* considered to be part of the string.
|
|
*
|
|
* Returned Value:
|
|
* Upon completion, strchrnul() returns a pointer to the byte, or a
|
|
* pointer to null if the byte was not found.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#if !defined(CONFIG_LIBC_ARCH_STRCHRNUL) && defined(LIBC_BUILD_STRCHRNUL)
|
|
#undef strchrnul /* See mm/README.txt */
|
|
FAR char *strchrnul(FAR const char *s, int c)
|
|
{
|
|
if (s)
|
|
{
|
|
while (*s != '\0' && *s != c)
|
|
{
|
|
s++;
|
|
}
|
|
}
|
|
|
|
return (FAR char *)s;
|
|
}
|
|
#endif
|