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

46 lines
1.6 KiB
C

/****************************************************************************
* libs/libc/wchar/lib_wctob.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 <stdlib.h>
#include <wchar.h>
#include <limits.h>
/****************************************************************************
* Public Functions
****************************************************************************/
int wctob(wint_t wc)
{
char pmb[MB_LEN_MAX];
if (wc == WEOF)
{
return EOF;
}
return wctomb(pmb, wc) == 1 ? pmb[0] : EOF;
}