nuttx/libs/libc/string/lib_strchrnul.c
pengyiqiang 01cbfec897 libc/string: fix lib_strchrnul warning.
N/A

Change-Id: I4661a42923b7e2f59155c734cba2131bddb94211
Signed-off-by: pengyiqiang <pengyiqiang@xiaomi.com>
2021-08-25 15:08:37 +08:00

58 lines
2 KiB
C

/****************************************************************************
* libs/libc/string/lib_strchrnul.c
*
* 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>
/****************************************************************************
* 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, strchrnull() returns a pointer to the byte, or a
* pointer to null if the byte was not found.
*
****************************************************************************/
FAR char *strchrnul(FAR const char *s, int c)
{
if (s)
{
while (*s && *s != c)
{
s++;
}
}
return (FAR char *)s;
}