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Bruno Haible
44 lines
1.3 KiB
C
44 lines
1.3 KiB
C
/* Retrieve information about a FILE stream.
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Copyright (C) 2007 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program 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 General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation,
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Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
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#include <stdbool.h>
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#include <stdio.h>
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/* Return true if the stream STREAM supports writing, false if it supports
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only reading.
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STREAM must not be wide-character oriented.
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The result doesn't change until the stream is closed or re-opened. */
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#if HAVE___FWRITABLE /* glibc >= 2.2, Solaris >= 7 */
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# include <stdio_ext.h>
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# define fwritable(stream) (__fwritable (stream) != 0)
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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 bool fwritable (FILE *stream);
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# ifdef __cplusplus
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}
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# endif
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#endif
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