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/* Retrieve information about a FILE stream.
Copyright (C) 2007-2021 Free Software Foundation, Inc.
This file is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 2.1 of the
License, or (at your option) any later version.
This file is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#include <stddef.h>
#include <stdio.h>
/* Assuming the stream STREAM is open for reading:
Return a pointer to the input buffer of STREAM, or NULL.
If the returned pointer is non-NULL, *SIZEP is set to the (positive) size
of the input buffer.
If the returned pointer is NULL, you should use getc (STREAM),
fgetc (STREAM), or fread (..., STREAM) to access the input from STREAM.
The resulting pointer becomes invalid upon any operation on STREAM.
STREAM must not be wide-character oriented. */
#if HAVE___FREADPTR /* musl libc */
# include <stdio_ext.h>
# define freadptr(stream,sizep) __freadptr (stream, sizep)
#else
# ifdef __cplusplus
extern "C" {
# endif
extern const char * freadptr (FILE *stream, size_t *sizep);
# ifdef __cplusplus
}
# endif
#endif
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