incubator-nuttx/libs/libc/wchar/lib_wcspbrk.c

60 lines
2.3 KiB
C

/****************************************************************************
* libs/libc/wchar/lib_wcspbrk.c
*
* SPDX-License-Identifier: MIT
* SPDX-FileCopyrightText: 2005-2014 Rich Felker, et al.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <wchar.h>
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: wcspbrk
*
* Description:
* Locate characters in wide string
*
* Input Parameters:
* s - the wide string to be scanned
* b - the wide string containing the characters to match
*
* Returned Value:
* The pointer to the first occurrence in "s" of any of the wide characters
* that are part of "b",
* Return null if there are no matches.
*
****************************************************************************/
FAR wchar_t *wcspbrk(FAR const wchar_t *s, FAR const wchar_t *b)
{
s += wcscspn(s, b);
return *s ? (FAR wchar_t *)s : NULL;
}