1  // localization implementation details, DragonFly version -*- C++ -*-
       2  
       3  // Copyright (C) 2001-2023 Free Software Foundation, Inc.
       4  //
       5  // This file is part of the GNU ISO C++ Library.  This library is free
       6  // software; you can redistribute it and/or modify it under the
       7  // terms of the GNU General Public License as published by the
       8  // Free Software Foundation; either version 3, or (at your option)
       9  // any later version.
      10  
      11  // This library is distributed in the hope that it will be useful,
      12  // but WITHOUT ANY WARRANTY; without even the implied warranty of
      13  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      14  // GNU General Public License for more details.
      15  
      16  // Under Section 7 of GPL version 3, you are granted additional
      17  // permissions described in the GCC Runtime Library Exception, version
      18  // 3.1, as published by the Free Software Foundation.
      19  
      20  // You should have received a copy of the GNU General Public License and
      21  // a copy of the GCC Runtime Library Exception along with this program;
      22  // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
      23  // <http://www.gnu.org/licenses/>.
      24  
      25  /** @file bits/c++locale.h
      26   *  This is an internal header file, included by other library headers.
      27   *  Do not attempt to use it directly. @headername{locale}
      28   */
      29  
      30  //
      31  // ISO C++ 14882: 22.8  Standard locale categories.
      32  //
      33  
      34  // Written by Benjamin Kosnik <bkoz@redhat.com>
      35  // Modified for DragonFly by John Marino <gnugcc@marino.st>
      36  
      37  #ifndef _GLIBCXX_CXX_LOCALE_H
      38  #define _GLIBCXX_CXX_LOCALE_H 1
      39  
      40  #pragma GCC system_header
      41  
      42  #include <clocale>
      43  #include <xlocale.h>
      44  
      45  #define _GLIBCXX_NUM_CATEGORIES 0
      46  
      47  namespace std _GLIBCXX_VISIBILITY(default)
      48  {
      49  _GLIBCXX_BEGIN_NAMESPACE_VERSION
      50  
      51    typedef int*			__c_locale;
      52  
      53    // Convert numeric value of type double and long double to string and
      54    // return length of string.  If vsnprintf is available use it, otherwise
      55    // fall back to the unsafe vsprintf which, in general, can be dangerous
      56    // and should be avoided.
      57    inline int
      58    __convert_from_v(const __c_locale& __cloc, char* __out,
      59  		   const int __size __attribute__ ((__unused__)),
      60  		   const char* __fmt, ...)
      61    {
      62      __c_locale __old = (__c_locale)uselocale((locale_t)__cloc);
      63  
      64      __builtin_va_list __args;
      65      __builtin_va_start(__args, __fmt);
      66  
      67  #if _GLIBCXX_USE_C99_STDIO
      68      const int __ret = __builtin_vsnprintf(__out, __size, __fmt, __args);
      69  #else
      70      const int __ret = __builtin_vsprintf(__out, __fmt, __args);
      71  #endif
      72  
      73      __builtin_va_end(__args);
      74  
      75      uselocale((locale_t)__old);
      76      return __ret;
      77    }
      78  
      79  _GLIBCXX_END_NAMESPACE_VERSION
      80  } // namespace
      81  
      82  #endif