49 lines
1.5 KiB
C
49 lines
1.5 KiB
C
/* Retrieve information about a FILE stream.
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Copyright (C) 2007-2022 Free Software Foundation, Inc.
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This file is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation; either version 2.1 of the
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License, or (at your option) any later version.
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This file is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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#include <stddef.h>
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#include <stdio.h>
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/* Assuming the stream STREAM is open for reading:
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Return a pointer to the input buffer of STREAM, or NULL.
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If the returned pointer is non-NULL, *SIZEP is set to the (positive) size
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of the input buffer.
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If the returned pointer is NULL, you should use getc (STREAM),
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fgetc (STREAM), or fread (..., STREAM) to access the input from STREAM.
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The resulting pointer becomes invalid upon any operation on STREAM.
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STREAM must not be wide-character oriented. */
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#if HAVE___FREADPTR /* musl libc */
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# include <stdio_ext.h>
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# define freadptr(stream,sizep) __freadptr (stream, sizep)
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#else
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# ifdef __cplusplus
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extern "C" {
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# endif
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extern const char * freadptr (FILE *stream, size_t *sizep);
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# ifdef __cplusplus
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}
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# endif
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#endif
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