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/* Retrieve information about a FILE stream.
Copyright (C) 2007 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
#include <stddef.h>
#include <stdio.h>
#ifdef __cplusplus
extern "C" {
#endif
/* Assuming the stream STREAM is open for reading:
Return the number of bytes waiting in the input buffer of STREAM.
If this number is 0 and the stream is not currently writing,
fflush (STREAM) is known to be a no-op.
STREAM must not be wide-character oriented. */
extern size_t freadahead (FILE *stream);
#ifdef __cplusplus
}
#endif
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