1  // <vstring.h> Forward declarations -*- C++ -*-
       2  
       3  // Copyright (C) 2005-2023 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 ext/vstring_fwd.h
      26   *  This is an internal header file, included by other library headers.
      27   *  Do not attempt to use it directly. @headername{ext/vstring.h}
      28   */
      29  
      30  #ifndef _VSTRING_FWD_H
      31  #define _VSTRING_FWD_H 1
      32  
      33  #pragma GCC system_header
      34  
      35  #include <bits/requires_hosted.h> // GNU extensions are currently omitted
      36  
      37  #include <bits/c++config.h>
      38  #include <bits/char_traits.h>
      39  #include <bits/allocator.h>
      40  
      41  namespace __gnu_cxx _GLIBCXX_VISIBILITY(default)
      42  {
      43  _GLIBCXX_BEGIN_NAMESPACE_VERSION
      44  
      45    template<typename _CharT, typename _Traits, typename _Alloc>
      46      class __sso_string_base;
      47  
      48    template<typename _CharT, typename _Traits, typename _Alloc>
      49      class __rc_string_base;
      50  
      51    template<typename _CharT, typename _Traits = std::char_traits<_CharT>,
      52             typename _Alloc = std::allocator<_CharT>,
      53  	   template
      54  	   <typename, typename, typename> class _Base = __sso_string_base>
      55      class __versa_string;
      56  
      57    typedef __versa_string<char>                              __vstring;
      58    typedef __vstring                                         __sso_string;
      59    typedef 
      60    __versa_string<char, std::char_traits<char>,
      61  		 std::allocator<char>, __rc_string_base>    __rc_string;
      62  
      63    typedef __versa_string<wchar_t>                           __wvstring;
      64    typedef __wvstring                                        __wsso_string;
      65    typedef
      66    __versa_string<wchar_t, std::char_traits<wchar_t>,
      67  		 std::allocator<wchar_t>, __rc_string_base> __wrc_string;
      68  
      69  #if __cplusplus >= 201103L
      70    typedef __versa_string<char16_t>                          __u16vstring;
      71    typedef __u16vstring                                      __u16sso_string;
      72    typedef 
      73    __versa_string<char16_t, std::char_traits<char16_t>,
      74  		 std::allocator<char16_t>, __rc_string_base> __u16rc_string;
      75  
      76    typedef __versa_string<char32_t>                          __u32vstring;
      77    typedef __u32vstring                                      __u32sso_string;
      78    typedef 
      79    __versa_string<char32_t, std::char_traits<char32_t>,
      80  		 std::allocator<char32_t>, __rc_string_base> __u32rc_string;
      81  #endif // C++11
      82  
      83  _GLIBCXX_END_NAMESPACE_VERSION
      84  } // namespace
      85  
      86  #endif /* _VSTRING_FWD_H */