63 lines
2.2 KiB
C
63 lines
2.2 KiB
C
/****************************************************************************
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* libs/libc/stdio/lib_ferror.c
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdio.h>
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#include <errno.h>
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#include <nuttx/fs/fs.h>
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#ifdef CONFIG_FILE_STREAM
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: ferror
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*
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* Description:
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* This function will test if the last operation resulted in an error.
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* This is used to disambiguate EOF and error conditions.
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*
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* Returned Value:
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* A non-zero value is returned to indicate the error condition.
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*
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****************************************************************************/
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int ferror(FILE *stream)
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{
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/* If an error is encountered by any of the C-buffered I/O functions, they
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* should set the __FS_FLAG_ERROR in the fs_flags field of struct
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* file_struct.
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*/
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return (stream->fs_flags & __FS_FLAG_ERROR) != 0;
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}
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#endif /* CONFIG_FILE_STREAM */
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