32c8d4b145
2007-05-21 Paolo Carlini <pcarlini@suse.de> * config/locale/gnu/c_locale.h: Do not include <cstdarg>, use builtins. * config/locale/generic/c_locale.h: Likewise. From-SVN: r124907
97 lines
3.0 KiB
C++
97 lines
3.0 KiB
C++
// Wrapper for underlying C-language localization -*- C++ -*-
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// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007
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// 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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
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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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/** @file c++locale.h
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* This is an internal header file, included by other library headers.
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* You should not attempt to use it directly.
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*/
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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 _GLIBCXX_CXX_LOCALE_H
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#define _GLIBCXX_CXX_LOCALE_H 1
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#pragma GCC system_header
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#include <clocale>
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#include <cstddef>
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#define _GLIBCXX_NUM_CATEGORIES 0
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_GLIBCXX_BEGIN_NAMESPACE(std)
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typedef int* __c_locale;
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// Convert numeric value of type double and long double to string and
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// return length of string. If vsnprintf is available use it, otherwise
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// fall back to the unsafe vsprintf which, in general, can be dangerous
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// and should be avoided.
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inline int
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__convert_from_v(const __c_locale&, char* __out,
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const int __size __attribute__((__unused__)),
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const char* __fmt, ...)
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{
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char* __old = std::setlocale(LC_NUMERIC, NULL);
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char* __sav = NULL;
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if (__builtin_strcmp(__old, "C"))
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{
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const size_t __len = __builtin_strlen(__old) + 1;
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__sav = new char[__len];
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__builtin_memcpy(__sav, __old, __len);
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std::setlocale(LC_NUMERIC, "C");
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}
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__builtin_va_list __args;
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__builtin_va_start(__args, __fmt);
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#ifdef _GLIBCXX_USE_C99
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const int __ret = __builtin_vsnprintf(__out, __size, __fmt, __args);
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#else
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const int __ret = __builtin_vsprintf(__out, __fmt, __args);
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#endif
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__builtin_va_end(__args);
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if (__sav)
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{
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std::setlocale(LC_NUMERIC, __sav);
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delete [] __sav;
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}
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return __ret;
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}
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_GLIBCXX_END_NAMESPACE
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#endif
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