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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [libstdc++-v3/] [config/] [locale/] [generic/] [c_locale.h] - Blame information for rev 424

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1 424 jeremybenn
// Wrapper for underlying C-language localization -*- C++ -*-
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// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009
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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 3, 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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// Under Section 7 of GPL version 3, you are granted additional
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// permissions described in the GCC Runtime Library Exception, version
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// 3.1, as published by the Free Software Foundation.
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// You should have received a copy of the GNU General Public License and
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// a copy of the GCC Runtime Library Exception along with this program;
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// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
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// <http://www.gnu.org/licenses/>.
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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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