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f45e487d76
2003-07-14 Paolo Carlini <pcarlini@unitus.it> * config/locale/gnu/c_locale.h (__convert_from_v): One more qualification. From-SVN: r69353
109 lines
3.5 KiB
C++
109 lines
3.5 KiB
C++
// Wrapper for underlying C-language localization -*- C++ -*-
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// Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 2, or (at your option)
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// any later version.
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// This library 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 library; see the file COPYING. If not, write to the Free
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// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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// USA.
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// As a special exception, you may use this file as part of a free software
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// library without restriction. Specifically, if other files instantiate
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// templates or use macros or inline functions from this file, or you compile
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// this file and link it with other files to produce an executable, this
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// file does not by itself cause the resulting executable to be covered by
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// the GNU General Public License. This exception does not however
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// invalidate any other reasons why the executable file might be covered by
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// the GNU General Public License.
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//
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// ISO C++ 14882: 22.8 Standard locale categories.
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//
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// Written by Benjamin Kosnik <bkoz@redhat.com>
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#ifndef _C_LOCALE_H
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#define _C_LOCALE_H 1
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#pragma GCC system_header
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#include <cstring> // get std::strlen
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#include <cstdlib> // get std::malloc
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#include <cstdio> // get std::snprintf or std::sprintf
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#include <clocale>
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#include <langinfo.h> // For codecvt
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#include <iconv.h> // For codecvt using iconv, iconv_t
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#include <libintl.h> // For messages
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#define _GLIBCXX_C_LOCALE_GNU 1
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#define _GLIBCXX_NUM_CATEGORIES 6
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#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
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namespace __gnu_cxx
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{
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extern "C" __typeof(uselocale) __uselocale;
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}
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#endif
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namespace std
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{
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typedef __locale_t __c_locale;
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// Convert numeric value of type _Tv to string and return length of
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// string. If snprintf is available use it, otherwise fall back to
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// the unsafe sprintf which, in general, can be dangerous and should
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// be avoided.
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template<typename _Tv>
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int
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__convert_from_v(char* __out, const int __size, const char* __fmt,
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#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
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_Tv __v, const __c_locale& __cloc, int __prec = -1)
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{
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__c_locale __old = __gnu_cxx::__uselocale(__cloc);
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#else
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_Tv __v, const __c_locale&, int __prec = -1)
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{
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char* __old = std::setlocale(LC_ALL, NULL);
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char* __sav = static_cast<char*>(std::malloc(std::strlen(__old) + 1));
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if (__sav)
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std::strcpy(__sav, __old);
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std::setlocale(LC_ALL, "C");
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#endif
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int __ret;
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#ifdef _GLIBCXX_USE_C99
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if (__prec >= 0)
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__ret = std::snprintf(__out, __size, __fmt, __prec, __v);
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else
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__ret = std::snprintf(__out, __size, __fmt, __v);
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#else
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if (__prec >= 0)
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__ret = std::sprintf(__out, __fmt, __prec, __v);
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else
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__ret = std::sprintf(__out, __fmt, __v);
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#endif
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#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
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__gnu_cxx::__uselocale(__old);
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#else
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std::setlocale(LC_ALL, __sav);
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std::free(__sav);
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#endif
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return __ret;
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}
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}
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#endif
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