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annotate lib/strerror-override.h @ 16040:b8acd8099b25

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New module 'fmaf'. * lib/math.in.h (fmaf): New declaration. * lib/fmaf.c: New file. * m4/fmaf.m4: New file. * m4/math_h.m4 (gl_MATH_H): Test whethern fmaf is declared. (gl_MATH_H_DEFAULTS): Initialize GNULIB_FMAF, HAVE_FMAF, REPLACE_FMAF. * modules/math (Makefile.am): Substitute GNULIB_FMAF, HAVE_FMAF, REPLACE_FMAF. * modules/fmaf: New file. * doc/posix-functions/fmaf.texi: Mention the new module and the various bugs.
author Bruno Haible <bruno@clisp.org>
date Mon, 17 Oct 2011 23:51:21 +0200
parents 42b40ee9f878
children 8250f2777afc
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1 /* strerror-override.h --- POSIX compatible system error routine
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2
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3 Copyright (C) 2010-2011 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 _GL_STRERROR_OVERRIDE_H
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19 # define _GL_STRERROR_OVERRIDE_H
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20
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21 # include <errno.h>
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22 # include <stddef.h>
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23
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24 /* Reasonable buffer size that should never trigger ERANGE; if this
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25 proves too small, we intentionally abort(), to remind us to fix
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26 this value. */
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27 # define STACKBUF_LEN 256
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28
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29 /* If ERRNUM maps to an errno value defined by gnulib, return a string
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30 describing the error. Otherwise return NULL. */
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31 # if REPLACE_STRERROR_0 \
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32 || GNULIB_defined_ESOCK \
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33 || GNULIB_defined_EWINSOCK \
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34 || GNULIB_defined_ENOMSG \
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35 || GNULIB_defined_EIDRM \
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36 || GNULIB_defined_ENOLINK \
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37 || GNULIB_defined_EPROTO \
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38 || GNULIB_defined_EMULTIHOP \
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39 || GNULIB_defined_EBADMSG \
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40 || GNULIB_defined_EOVERFLOW \
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41 || GNULIB_defined_ENOTSUP \
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42 || GNULIB_defined_ENETRESET \
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43 || GNULIB_defined_ECONNABORTED \
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44 || GNULIB_defined_ESTALE \
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45 || GNULIB_defined_EDQUOT \
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46 || GNULIB_defined_ECANCELED
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47 extern const char *strerror_override (int errnum);
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48 # else
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49 # define strerror_override(ignored) NULL
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50 # endif
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51
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52 #endif /* _GL_STRERROR_OVERRIDE_H */