668 lines
26 KiB
C
668 lines
26 KiB
C
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/* DO NOT EDIT! GENERATED AUTOMATICALLY! */
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/* Substitute for and wrapper around <langinfo.h>.
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Copyright (C) 2009-2020 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 3, 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
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along with this program; if not, see <https://www.gnu.org/licenses/>. */
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/*
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* POSIX <langinfo.h> for platforms that lack it or have an incomplete one.
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* <https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/langinfo.h.html>
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*/
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#ifndef _GL_LANGINFO_H
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#if __GNUC__ >= 3
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#pragma GCC system_header
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#endif
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/* The include_next requires a split double-inclusion guard. */
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#if 1
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# include_next <langinfo.h>
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#endif
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#ifndef _GL_LANGINFO_H
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#define _GL_LANGINFO_H
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#if !1
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/* A platform that lacks <langinfo.h>. */
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/* Assume that it also lacks <nl_types.h> and the nl_item type. */
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# if !GNULIB_defined_nl_item
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typedef int nl_item;
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# define GNULIB_defined_nl_item 1
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# endif
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/* nl_langinfo items of the LC_CTYPE category */
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# define CODESET 10000
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/* nl_langinfo items of the LC_NUMERIC category */
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# define RADIXCHAR 10001
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# define DECIMAL_POINT RADIXCHAR
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# define THOUSEP 10002
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# define THOUSANDS_SEP THOUSEP
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# define GROUPING 10114
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/* nl_langinfo items of the LC_TIME category */
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# define D_T_FMT 10003
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# define D_FMT 10004
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# define T_FMT 10005
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# define T_FMT_AMPM 10006
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# define AM_STR 10007
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# define PM_STR 10008
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# define DAY_1 10009
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# define DAY_2 (DAY_1 + 1)
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# define DAY_3 (DAY_1 + 2)
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# define DAY_4 (DAY_1 + 3)
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# define DAY_5 (DAY_1 + 4)
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# define DAY_6 (DAY_1 + 5)
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# define DAY_7 (DAY_1 + 6)
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# define ABDAY_1 10016
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# define ABDAY_2 (ABDAY_1 + 1)
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# define ABDAY_3 (ABDAY_1 + 2)
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# define ABDAY_4 (ABDAY_1 + 3)
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# define ABDAY_5 (ABDAY_1 + 4)
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# define ABDAY_6 (ABDAY_1 + 5)
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# define ABDAY_7 (ABDAY_1 + 6)
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# define MON_1 10023
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# define MON_2 (MON_1 + 1)
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# define MON_3 (MON_1 + 2)
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# define MON_4 (MON_1 + 3)
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# define MON_5 (MON_1 + 4)
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# define MON_6 (MON_1 + 5)
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# define MON_7 (MON_1 + 6)
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# define MON_8 (MON_1 + 7)
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# define MON_9 (MON_1 + 8)
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# define MON_10 (MON_1 + 9)
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# define MON_11 (MON_1 + 10)
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# define MON_12 (MON_1 + 11)
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# define ALTMON_1 10200
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# define ALTMON_2 (ALTMON_1 + 1)
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# define ALTMON_3 (ALTMON_1 + 2)
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# define ALTMON_4 (ALTMON_1 + 3)
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# define ALTMON_5 (ALTMON_1 + 4)
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# define ALTMON_6 (ALTMON_1 + 5)
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# define ALTMON_7 (ALTMON_1 + 6)
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# define ALTMON_8 (ALTMON_1 + 7)
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# define ALTMON_9 (ALTMON_1 + 8)
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# define ALTMON_10 (ALTMON_1 + 9)
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# define ALTMON_11 (ALTMON_1 + 10)
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# define ALTMON_12 (ALTMON_1 + 11)
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# define ABMON_1 10035
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# define ABMON_2 (ABMON_1 + 1)
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# define ABMON_3 (ABMON_1 + 2)
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# define ABMON_4 (ABMON_1 + 3)
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# define ABMON_5 (ABMON_1 + 4)
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# define ABMON_6 (ABMON_1 + 5)
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# define ABMON_7 (ABMON_1 + 6)
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# define ABMON_8 (ABMON_1 + 7)
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# define ABMON_9 (ABMON_1 + 8)
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# define ABMON_10 (ABMON_1 + 9)
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# define ABMON_11 (ABMON_1 + 10)
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# define ABMON_12 (ABMON_1 + 11)
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# define ERA 10047
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# define ERA_D_FMT 10048
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# define ERA_D_T_FMT 10049
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# define ERA_T_FMT 10050
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# define ALT_DIGITS 10051
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/* nl_langinfo items of the LC_MONETARY category */
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# define CRNCYSTR 10052
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# define CURRENCY_SYMBOL CRNCYSTR
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# define INT_CURR_SYMBOL 10100
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# define MON_DECIMAL_POINT 10101
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# define MON_THOUSANDS_SEP 10102
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# define MON_GROUPING 10103
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# define POSITIVE_SIGN 10104
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# define NEGATIVE_SIGN 10105
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# define FRAC_DIGITS 10106
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# define INT_FRAC_DIGITS 10107
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# define P_CS_PRECEDES 10108
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# define N_CS_PRECEDES 10109
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# define P_SEP_BY_SPACE 10110
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# define N_SEP_BY_SPACE 10111
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# define P_SIGN_POSN 10112
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# define N_SIGN_POSN 10113
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/* nl_langinfo items of the LC_MESSAGES category */
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# define YESEXPR 10053
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# define NOEXPR 10054
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#else
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/* A platform that has <langinfo.h>. */
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# if !1
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# define CODESET 10000
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# define GNULIB_defined_CODESET 1
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# endif
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# if !1
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# define T_FMT_AMPM 10006
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# define GNULIB_defined_T_FMT_AMPM 1
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# endif
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# if !1
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# define ALTMON_1 10200
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# define ALTMON_2 (ALTMON_1 + 1)
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# define ALTMON_3 (ALTMON_1 + 2)
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# define ALTMON_4 (ALTMON_1 + 3)
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# define ALTMON_5 (ALTMON_1 + 4)
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# define ALTMON_6 (ALTMON_1 + 5)
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# define ALTMON_7 (ALTMON_1 + 6)
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# define ALTMON_8 (ALTMON_1 + 7)
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# define ALTMON_9 (ALTMON_1 + 8)
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# define ALTMON_10 (ALTMON_1 + 9)
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# define ALTMON_11 (ALTMON_1 + 10)
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# define ALTMON_12 (ALTMON_1 + 11)
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# define GNULIB_defined_ALTMON 1
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# endif
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# if !1
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# define ERA 10047
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# define ERA_D_FMT 10048
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# define ERA_D_T_FMT 10049
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# define ERA_T_FMT 10050
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# define ALT_DIGITS 10051
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# define GNULIB_defined_ERA 1
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# endif
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# if !1
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# define YESEXPR 10053
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# define NOEXPR 10054
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# define GNULIB_defined_YESEXPR 1
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# endif
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#endif
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/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
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/* C++ compatible function declaration macros.
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Copyright (C) 2010-2020 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published
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by the Free Software Foundation; either version 3 of the License, or
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(at your option) 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 GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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#ifndef _GL_CXXDEFS_H
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#define _GL_CXXDEFS_H
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/* Begin/end the GNULIB_NAMESPACE namespace. */
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#if defined __cplusplus && defined GNULIB_NAMESPACE
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# define _GL_BEGIN_NAMESPACE namespace GNULIB_NAMESPACE {
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# define _GL_END_NAMESPACE }
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#else
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# define _GL_BEGIN_NAMESPACE
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# define _GL_END_NAMESPACE
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#endif
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/* The three most frequent use cases of these macros are:
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* For providing a substitute for a function that is missing on some
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platforms, but is declared and works fine on the platforms on which
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it exists:
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#if @GNULIB_FOO@
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# if !@HAVE_FOO@
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_GL_FUNCDECL_SYS (foo, ...);
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# endif
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_GL_CXXALIAS_SYS (foo, ...);
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_GL_CXXALIASWARN (foo);
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#elif defined GNULIB_POSIXCHECK
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...
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#endif
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* For providing a replacement for a function that exists on all platforms,
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but is broken/insufficient and needs to be replaced on some platforms:
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#if @GNULIB_FOO@
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# if @REPLACE_FOO@
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# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
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# undef foo
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# define foo rpl_foo
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# endif
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_GL_FUNCDECL_RPL (foo, ...);
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_GL_CXXALIAS_RPL (foo, ...);
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# else
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_GL_CXXALIAS_SYS (foo, ...);
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# endif
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_GL_CXXALIASWARN (foo);
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#elif defined GNULIB_POSIXCHECK
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...
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#endif
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* For providing a replacement for a function that exists on some platforms
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but is broken/insufficient and needs to be replaced on some of them and
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is additionally either missing or undeclared on some other platforms:
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#if @GNULIB_FOO@
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# if @REPLACE_FOO@
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# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
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# undef foo
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# define foo rpl_foo
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# endif
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_GL_FUNCDECL_RPL (foo, ...);
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_GL_CXXALIAS_RPL (foo, ...);
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# else
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# if !@HAVE_FOO@ or if !@HAVE_DECL_FOO@
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_GL_FUNCDECL_SYS (foo, ...);
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# endif
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_GL_CXXALIAS_SYS (foo, ...);
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# endif
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_GL_CXXALIASWARN (foo);
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#elif defined GNULIB_POSIXCHECK
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...
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#endif
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*/
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/* _GL_EXTERN_C declaration;
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performs the declaration with C linkage. */
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#if defined __cplusplus
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# define _GL_EXTERN_C extern "C"
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#else
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# define _GL_EXTERN_C extern
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#endif
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/* _GL_FUNCDECL_RPL (func, rettype, parameters_and_attributes);
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declares a replacement function, named rpl_func, with the given prototype,
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consisting of return type, parameters, and attributes.
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Example:
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_GL_FUNCDECL_RPL (open, int, (const char *filename, int flags, ...)
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_GL_ARG_NONNULL ((1)));
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*/
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#define _GL_FUNCDECL_RPL(func,rettype,parameters_and_attributes) \
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_GL_FUNCDECL_RPL_1 (rpl_##func, rettype, parameters_and_attributes)
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#define _GL_FUNCDECL_RPL_1(rpl_func,rettype,parameters_and_attributes) \
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_GL_EXTERN_C rettype rpl_func parameters_and_attributes
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/* _GL_FUNCDECL_SYS (func, rettype, parameters_and_attributes);
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declares the system function, named func, with the given prototype,
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consisting of return type, parameters, and attributes.
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Example:
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_GL_FUNCDECL_SYS (open, int, (const char *filename, int flags, ...)
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_GL_ARG_NONNULL ((1)));
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*/
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#define _GL_FUNCDECL_SYS(func,rettype,parameters_and_attributes) \
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_GL_EXTERN_C rettype func parameters_and_attributes
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/* _GL_CXXALIAS_RPL (func, rettype, parameters);
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declares a C++ alias called GNULIB_NAMESPACE::func
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that redirects to rpl_func, if GNULIB_NAMESPACE is defined.
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Example:
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_GL_CXXALIAS_RPL (open, int, (const char *filename, int flags, ...));
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Wrapping rpl_func in an object with an inline conversion operator
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avoids a reference to rpl_func unless GNULIB_NAMESPACE::func is
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actually used in the program. */
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#define _GL_CXXALIAS_RPL(func,rettype,parameters) \
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_GL_CXXALIAS_RPL_1 (func, rpl_##func, rettype, parameters)
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#if defined __cplusplus && defined GNULIB_NAMESPACE
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# define _GL_CXXALIAS_RPL_1(func,rpl_func,rettype,parameters) \
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namespace GNULIB_NAMESPACE \
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{ \
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static const struct _gl_ ## func ## _wrapper \
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{ \
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typedef rettype (*type) parameters; \
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\
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inline operator type () const \
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{ \
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return ::rpl_func; \
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} \
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} func = {}; \
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} \
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_GL_EXTERN_C int _gl_cxxalias_dummy
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#else
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# define _GL_CXXALIAS_RPL_1(func,rpl_func,rettype,parameters) \
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_GL_EXTERN_C int _gl_cxxalias_dummy
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#endif
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/* _GL_CXXALIAS_RPL_CAST_1 (func, rpl_func, rettype, parameters);
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is like _GL_CXXALIAS_RPL_1 (func, rpl_func, rettype, parameters);
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except that the C function rpl_func may have a slightly different
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declaration. A cast is used to silence the "invalid conversion" error
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that would otherwise occur. */
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#if defined __cplusplus && defined GNULIB_NAMESPACE
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# define _GL_CXXALIAS_RPL_CAST_1(func,rpl_func,rettype,parameters) \
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namespace GNULIB_NAMESPACE \
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{ \
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static const struct _gl_ ## func ## _wrapper \
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{ \
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typedef rettype (*type) parameters; \
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\
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inline operator type () const \
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{ \
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return reinterpret_cast<type>(::rpl_func); \
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} \
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} func = {}; \
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} \
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_GL_EXTERN_C int _gl_cxxalias_dummy
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#else
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# define _GL_CXXALIAS_RPL_CAST_1(func,rpl_func,rettype,parameters) \
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_GL_EXTERN_C int _gl_cxxalias_dummy
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#endif
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/* _GL_CXXALIAS_SYS (func, rettype, parameters);
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declares a C++ alias called GNULIB_NAMESPACE::func
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that redirects to the system provided function func, if GNULIB_NAMESPACE
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is defined.
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Example:
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_GL_CXXALIAS_SYS (open, int, (const char *filename, int flags, ...));
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Wrapping func in an object with an inline conversion operator
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avoids a reference to func unless GNULIB_NAMESPACE::func is
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actually used in the program. */
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#if defined __cplusplus && defined GNULIB_NAMESPACE
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# define _GL_CXXALIAS_SYS(func,rettype,parameters) \
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namespace GNULIB_NAMESPACE \
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{ \
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static const struct _gl_ ## func ## _wrapper \
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{ \
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typedef rettype (*type) parameters; \
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\
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inline operator type () const \
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{ \
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return ::func; \
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} \
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} func = {}; \
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} \
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_GL_EXTERN_C int _gl_cxxalias_dummy
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#else
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# define _GL_CXXALIAS_SYS(func,rettype,parameters) \
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_GL_EXTERN_C int _gl_cxxalias_dummy
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#endif
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/* _GL_CXXALIAS_SYS_CAST (func, rettype, parameters);
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is like _GL_CXXALIAS_SYS (func, rettype, parameters);
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except that the C function func may have a slightly different declaration.
|
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A cast is used to silence the "invalid conversion" error that would
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otherwise occur. */
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#if defined __cplusplus && defined GNULIB_NAMESPACE
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# define _GL_CXXALIAS_SYS_CAST(func,rettype,parameters) \
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||
|
namespace GNULIB_NAMESPACE \
|
||
|
{ \
|
||
|
static const struct _gl_ ## func ## _wrapper \
|
||
|
{ \
|
||
|
typedef rettype (*type) parameters; \
|
||
|
\
|
||
|
inline operator type () const \
|
||
|
{ \
|
||
|
return reinterpret_cast<type>(::func); \
|
||
|
} \
|
||
|
} func = {}; \
|
||
|
} \
|
||
|
_GL_EXTERN_C int _gl_cxxalias_dummy
|
||
|
#else
|
||
|
# define _GL_CXXALIAS_SYS_CAST(func,rettype,parameters) \
|
||
|
_GL_EXTERN_C int _gl_cxxalias_dummy
|
||
|
#endif
|
||
|
|
||
|
/* _GL_CXXALIAS_SYS_CAST2 (func, rettype, parameters, rettype2, parameters2);
|
||
|
is like _GL_CXXALIAS_SYS (func, rettype, parameters);
|
||
|
except that the C function is picked among a set of overloaded functions,
|
||
|
namely the one with rettype2 and parameters2. Two consecutive casts
|
||
|
are used to silence the "cannot find a match" and "invalid conversion"
|
||
|
errors that would otherwise occur. */
|
||
|
#if defined __cplusplus && defined GNULIB_NAMESPACE
|
||
|
/* The outer cast must be a reinterpret_cast.
|
||
|
The inner cast: When the function is defined as a set of overloaded
|
||
|
functions, it works as a static_cast<>, choosing the designated variant.
|
||
|
When the function is defined as a single variant, it works as a
|
||
|
reinterpret_cast<>. The parenthesized cast syntax works both ways. */
|
||
|
# define _GL_CXXALIAS_SYS_CAST2(func,rettype,parameters,rettype2,parameters2) \
|
||
|
namespace GNULIB_NAMESPACE \
|
||
|
{ \
|
||
|
static const struct _gl_ ## func ## _wrapper \
|
||
|
{ \
|
||
|
typedef rettype (*type) parameters; \
|
||
|
\
|
||
|
inline operator type () const \
|
||
|
{ \
|
||
|
return reinterpret_cast<type>((rettype2 (*) parameters2)(::func)); \
|
||
|
} \
|
||
|
} func = {}; \
|
||
|
} \
|
||
|
_GL_EXTERN_C int _gl_cxxalias_dummy
|
||
|
#else
|
||
|
# define _GL_CXXALIAS_SYS_CAST2(func,rettype,parameters,rettype2,parameters2) \
|
||
|
_GL_EXTERN_C int _gl_cxxalias_dummy
|
||
|
#endif
|
||
|
|
||
|
/* _GL_CXXALIASWARN (func);
|
||
|
causes a warning to be emitted when ::func is used but not when
|
||
|
GNULIB_NAMESPACE::func is used. func must be defined without overloaded
|
||
|
variants. */
|
||
|
#if defined __cplusplus && defined GNULIB_NAMESPACE
|
||
|
# define _GL_CXXALIASWARN(func) \
|
||
|
_GL_CXXALIASWARN_1 (func, GNULIB_NAMESPACE)
|
||
|
# define _GL_CXXALIASWARN_1(func,namespace) \
|
||
|
_GL_CXXALIASWARN_2 (func, namespace)
|
||
|
/* To work around GCC bug <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>,
|
||
|
we enable the warning only when not optimizing. */
|
||
|
# if !__OPTIMIZE__
|
||
|
# define _GL_CXXALIASWARN_2(func,namespace) \
|
||
|
_GL_WARN_ON_USE (func, \
|
||
|
"The symbol ::" #func " refers to the system function. " \
|
||
|
"Use " #namespace "::" #func " instead.")
|
||
|
# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING
|
||
|
# define _GL_CXXALIASWARN_2(func,namespace) \
|
||
|
extern __typeof__ (func) func
|
||
|
# else
|
||
|
# define _GL_CXXALIASWARN_2(func,namespace) \
|
||
|
_GL_EXTERN_C int _gl_cxxalias_dummy
|
||
|
# endif
|
||
|
#else
|
||
|
# define _GL_CXXALIASWARN(func) \
|
||
|
_GL_EXTERN_C int _gl_cxxalias_dummy
|
||
|
#endif
|
||
|
|
||
|
/* _GL_CXXALIASWARN1 (func, rettype, parameters_and_attributes);
|
||
|
causes a warning to be emitted when the given overloaded variant of ::func
|
||
|
is used but not when GNULIB_NAMESPACE::func is used. */
|
||
|
#if defined __cplusplus && defined GNULIB_NAMESPACE
|
||
|
# define _GL_CXXALIASWARN1(func,rettype,parameters_and_attributes) \
|
||
|
_GL_CXXALIASWARN1_1 (func, rettype, parameters_and_attributes, \
|
||
|
GNULIB_NAMESPACE)
|
||
|
# define _GL_CXXALIASWARN1_1(func,rettype,parameters_and_attributes,namespace) \
|
||
|
_GL_CXXALIASWARN1_2 (func, rettype, parameters_and_attributes, namespace)
|
||
|
/* To work around GCC bug <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>,
|
||
|
we enable the warning only when not optimizing. */
|
||
|
# if !__OPTIMIZE__
|
||
|
# define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \
|
||
|
_GL_WARN_ON_USE_CXX (func, rettype, parameters_and_attributes, \
|
||
|
"The symbol ::" #func " refers to the system function. " \
|
||
|
"Use " #namespace "::" #func " instead.")
|
||
|
# else
|
||
|
# define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \
|
||
|
_GL_EXTERN_C int _gl_cxxalias_dummy
|
||
|
# endif
|
||
|
#else
|
||
|
# define _GL_CXXALIASWARN1(func,rettype,parameters_and_attributes) \
|
||
|
_GL_EXTERN_C int _gl_cxxalias_dummy
|
||
|
#endif
|
||
|
|
||
|
#endif /* _GL_CXXDEFS_H */
|
||
|
|
||
|
/* The definition of _GL_WARN_ON_USE is copied here. */
|
||
|
/* A C macro for emitting warnings if a function is used.
|
||
|
Copyright (C) 2010-2020 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 3 of the License, 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, see <https://www.gnu.org/licenses/>. */
|
||
|
|
||
|
/* _GL_WARN_ON_USE (function, "literal string") issues a declaration
|
||
|
for FUNCTION which will then trigger a compiler warning containing
|
||
|
the text of "literal string" anywhere that function is called, if
|
||
|
supported by the compiler. If the compiler does not support this
|
||
|
feature, the macro expands to an unused extern declaration.
|
||
|
|
||
|
_GL_WARN_ON_USE_ATTRIBUTE ("literal string") expands to the
|
||
|
attribute used in _GL_WARN_ON_USE. If the compiler does not support
|
||
|
this feature, it expands to empty.
|
||
|
|
||
|
These macros are useful for marking a function as a potential
|
||
|
portability trap, with the intent that "literal string" include
|
||
|
instructions on the replacement function that should be used
|
||
|
instead.
|
||
|
_GL_WARN_ON_USE is for functions with 'extern' linkage.
|
||
|
_GL_WARN_ON_USE_ATTRIBUTE is for functions with 'static' or 'inline'
|
||
|
linkage.
|
||
|
|
||
|
However, one of the reasons that a function is a portability trap is
|
||
|
if it has the wrong signature. Declaring FUNCTION with a different
|
||
|
signature in C is a compilation error, so this macro must use the
|
||
|
same type as any existing declaration so that programs that avoid
|
||
|
the problematic FUNCTION do not fail to compile merely because they
|
||
|
included a header that poisoned the function. But this implies that
|
||
|
_GL_WARN_ON_USE is only safe to use if FUNCTION is known to already
|
||
|
have a declaration. Use of this macro implies that there must not
|
||
|
be any other macro hiding the declaration of FUNCTION; but
|
||
|
undefining FUNCTION first is part of the poisoning process anyway
|
||
|
(although for symbols that are provided only via a macro, the result
|
||
|
is a compilation error rather than a warning containing
|
||
|
"literal string"). Also note that in C++, it is only safe to use if
|
||
|
FUNCTION has no overloads.
|
||
|
|
||
|
For an example, it is possible to poison 'getline' by:
|
||
|
- adding a call to gl_WARN_ON_USE_PREPARE([[#include <stdio.h>]],
|
||
|
[getline]) in configure.ac, which potentially defines
|
||
|
HAVE_RAW_DECL_GETLINE
|
||
|
- adding this code to a header that wraps the system <stdio.h>:
|
||
|
#undef getline
|
||
|
#if HAVE_RAW_DECL_GETLINE
|
||
|
_GL_WARN_ON_USE (getline, "getline is required by POSIX 2008, but"
|
||
|
"not universally present; use the gnulib module getline");
|
||
|
#endif
|
||
|
|
||
|
It is not possible to directly poison global variables. But it is
|
||
|
possible to write a wrapper accessor function, and poison that
|
||
|
(less common usage, like &environ, will cause a compilation error
|
||
|
rather than issue the nice warning, but the end result of informing
|
||
|
the developer about their portability problem is still achieved):
|
||
|
#if HAVE_RAW_DECL_ENVIRON
|
||
|
static char ***
|
||
|
rpl_environ (void) { return &environ; }
|
||
|
_GL_WARN_ON_USE (rpl_environ, "environ is not always properly declared");
|
||
|
# undef environ
|
||
|
# define environ (*rpl_environ ())
|
||
|
#endif
|
||
|
or better (avoiding contradictory use of 'static' and 'extern'):
|
||
|
#if HAVE_RAW_DECL_ENVIRON
|
||
|
static char ***
|
||
|
_GL_WARN_ON_USE_ATTRIBUTE ("environ is not always properly declared")
|
||
|
rpl_environ (void) { return &environ; }
|
||
|
# undef environ
|
||
|
# define environ (*rpl_environ ())
|
||
|
#endif
|
||
|
*/
|
||
|
#ifndef _GL_WARN_ON_USE
|
||
|
|
||
|
# if 4 < __GNUC__ || (__GNUC__ == 4 && 3 <= __GNUC_MINOR__)
|
||
|
/* A compiler attribute is available in gcc versions 4.3.0 and later. */
|
||
|
# define _GL_WARN_ON_USE(function, message) \
|
||
|
extern __typeof__ (function) function __attribute__ ((__warning__ (message)))
|
||
|
# define _GL_WARN_ON_USE_ATTRIBUTE(message) \
|
||
|
__attribute__ ((__warning__ (message)))
|
||
|
# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING
|
||
|
/* Verify the existence of the function. */
|
||
|
# define _GL_WARN_ON_USE(function, message) \
|
||
|
extern __typeof__ (function) function
|
||
|
# define _GL_WARN_ON_USE_ATTRIBUTE(message)
|
||
|
# else /* Unsupported. */
|
||
|
# define _GL_WARN_ON_USE(function, message) \
|
||
|
_GL_WARN_EXTERN_C int _gl_warn_on_use
|
||
|
# define _GL_WARN_ON_USE_ATTRIBUTE(message)
|
||
|
# endif
|
||
|
#endif
|
||
|
|
||
|
/* _GL_WARN_ON_USE_CXX (function, rettype, parameters_and_attributes, "string")
|
||
|
is like _GL_WARN_ON_USE (function, "string"), except that the function is
|
||
|
declared with the given prototype, consisting of return type, parameters,
|
||
|
and attributes.
|
||
|
This variant is useful for overloaded functions in C++. _GL_WARN_ON_USE does
|
||
|
not work in this case. */
|
||
|
#ifndef _GL_WARN_ON_USE_CXX
|
||
|
# if 4 < __GNUC__ || (__GNUC__ == 4 && 3 <= __GNUC_MINOR__)
|
||
|
# define _GL_WARN_ON_USE_CXX(function,rettype,parameters_and_attributes,msg) \
|
||
|
extern rettype function parameters_and_attributes \
|
||
|
__attribute__ ((__warning__ (msg)))
|
||
|
# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING
|
||
|
/* Verify the existence of the function. */
|
||
|
# define _GL_WARN_ON_USE_CXX(function,rettype,parameters_and_attributes,msg) \
|
||
|
extern rettype function parameters_and_attributes
|
||
|
# else /* Unsupported. */
|
||
|
# define _GL_WARN_ON_USE_CXX(function,rettype,parameters_and_attributes,msg) \
|
||
|
_GL_WARN_EXTERN_C int _gl_warn_on_use
|
||
|
# endif
|
||
|
#endif
|
||
|
|
||
|
/* _GL_WARN_EXTERN_C declaration;
|
||
|
performs the declaration with C linkage. */
|
||
|
#ifndef _GL_WARN_EXTERN_C
|
||
|
# if defined __cplusplus
|
||
|
# define _GL_WARN_EXTERN_C extern "C"
|
||
|
# else
|
||
|
# define _GL_WARN_EXTERN_C extern
|
||
|
# endif
|
||
|
#endif
|
||
|
|
||
|
/* Declare overridden functions. */
|
||
|
|
||
|
|
||
|
/* Return a piece of locale dependent information.
|
||
|
Note: The difference between nl_langinfo (CODESET) and locale_charset ()
|
||
|
is that the latter normalizes the encoding names to GNU conventions. */
|
||
|
|
||
|
#if 1
|
||
|
# if 0
|
||
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
||
|
# undef nl_langinfo
|
||
|
# define nl_langinfo rpl_nl_langinfo
|
||
|
# endif
|
||
|
_GL_FUNCDECL_RPL (nl_langinfo, char *, (nl_item item));
|
||
|
_GL_CXXALIAS_RPL (nl_langinfo, char *, (nl_item item));
|
||
|
# else
|
||
|
# if !1
|
||
|
_GL_FUNCDECL_SYS (nl_langinfo, char *, (nl_item item));
|
||
|
# endif
|
||
|
_GL_CXXALIAS_SYS (nl_langinfo, char *, (nl_item item));
|
||
|
# endif
|
||
|
_GL_CXXALIASWARN (nl_langinfo);
|
||
|
#elif defined GNULIB_POSIXCHECK
|
||
|
# undef nl_langinfo
|
||
|
# if HAVE_RAW_DECL_NL_LANGINFO
|
||
|
_GL_WARN_ON_USE (nl_langinfo, "nl_langinfo is not portable - "
|
||
|
"use gnulib module nl_langinfo for portability");
|
||
|
# endif
|
||
|
#endif
|
||
|
|
||
|
|
||
|
#endif /* _GL_LANGINFO_H */
|
||
|
#endif /* _GL_LANGINFO_H */
|