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annotate lib/xmemdup0.h @ 17409:26a04e61f560

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stdio: use __REDIRECT for fwrite, fwrite_unlocked * lib/stdio.in.h (fwrite): When working around bug 11959, use __REDIRECT rather than '#define fwrite(...) ... fwrite (...) ...'. This is a more-targeted way to fix the -Wunused-value issue with clang, and it works with GCC too. Problem with targeting reported by Eric Blake in <http://lists.gnu.org/archive/html/bug-gnulib/2013-05/msg00067.html>. (fwrite_unlocked): Treat like fwrite. I ran into this issue while debugging the fwrite issue.
author Paul Eggert <eggert@cs.ucla.edu>
date Wed, 15 May 2013 15:52:42 -0700
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1 /* xmemdup0.h -- copy a block of arbitrary bytes, plus a trailing NUL
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2
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3 Copyright (C) 2008-2013 Free Software Foundation, Inc.
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4
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5 This program is free software: you can redistribute it and/or modify
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6 it under the terms of the GNU General Public License as published by
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7 the Free Software Foundation; either version 3 of the License, or
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8 (at your option) any later version.
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9
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10 This program is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 GNU General Public License for more details.
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14
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15 You should have received a copy of the GNU General Public License
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16 along with this program. If not, see <http://www.gnu.org/licenses/>. */
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17
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18 #ifndef XMEMDUP_H_
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19 # define XMEMDUP_H_
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20
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21 # include <stddef.h>
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22
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23
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24 # ifdef __cplusplus
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25 extern "C" {
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26 # endif
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27
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28 /* This function is always triggered when memory is exhausted.
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29 It must be defined by the application, either explicitly
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30 or by using gnulib's xalloc-die module. This is the
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31 function to call when one wants the program to die because of a
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32 memory allocation failure. */
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33 extern _Noreturn void xalloc_die (void);
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34
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35 char *xmemdup0 (void const *p, size_t s);
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36
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37 # ifdef __cplusplus
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38 }
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39 # endif
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40
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41 #endif /* !XMEMDUP0_H_ */