ceph/src/boost/boost/archive/codecvt_null.hpp

   1 #ifndef BOOST_ARCHIVE_CODECVT_NULL_HPP
   2 #define BOOST_ARCHIVE_CODECVT_NULL_HPP
   3
   4 // MS compatible compilers support #pragma once
   5 #if defined(_MSC_VER)
   6 # pragma once
   7 #endif
   8
   9 /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
  10 // codecvt_null.hpp:
  11
  12 // (C) Copyright 2004 Robert Ramey - http://www.rrsd.com .
  13 // Use, modification and distribution is subject to the Boost Software
  14 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
  15 // http://www.boost.org/LICENSE_1_0.txt)
  16
  17 //  See http://www.boost.org for updates, documentation, and revision history.
  18
  19 #include <locale>
  20 #include <cstddef> // NULL, size_t
  21 #ifndef BOOST_NO_CWCHAR
  22 #include <cwchar>   // for mbstate_t
  23 #endif
  24 #include <boost/config.hpp>
  25 #include <boost/serialization/force_include.hpp>
  26 #include <boost/archive/detail/auto_link_archive.hpp>
  27 //#include <boost/archive/detail/abi_prefix.hpp> // must be the last header
  28
  29 #if defined(BOOST_NO_STDC_NAMESPACE)
  30 namespace std {
  31 // For STLport on WinCE, BOOST_NO_STDC_NAMESPACE can get defined if STLport is putting symbols in its own namespace.
  32 // In the case of codecvt, however, this does not mean that codecvt is in the global namespace (it will be in STLport's namespace)
  33 #  if !defined(__SGI_STL_PORT) && !defined(_STLPORT_VERSION)
  34     using ::codecvt;
  35 #  endif
  36     using ::mbstate_t;
  37     using ::size_t;
  38 } // namespace
  39 #endif
  40
  41 #ifdef BOOST_MSVC
  42 #  pragma warning(push)
  43 #  pragma warning(disable : 4511 4512)
  44 #endif
  45
  46 namespace boost {
  47 namespace archive {
  48
  49 template<class Ch>
  50 class codecvt_null;
  51
  52 template<>
  53 class codecvt_null<char> : public std::codecvt<char, char, std::mbstate_t>
  54 {
  55     bool do_always_noconv() const throw() BOOST_OVERRIDE {
  56         return true;
  57     }
  58 public:
  59     explicit codecvt_null(std::size_t no_locale_manage = 0) :
  60         std::codecvt<char, char, std::mbstate_t>(no_locale_manage)
  61     {}
  62     ~codecvt_null() BOOST_OVERRIDE {}
  63 };
  64
  65 template<>
  66 class BOOST_SYMBOL_VISIBLE codecvt_null<wchar_t> :
  67     public std::codecvt<wchar_t, char, std::mbstate_t>
  68 {
  69     BOOST_SYMBOL_EXPORT std::codecvt_base::result
  70     do_out(
  71         std::mbstate_t & state,
  72         const wchar_t * first1,
  73         const wchar_t * last1,
  74         const wchar_t * & next1,
  75         char * first2,
  76         char * last2,
  77         char * & next2
  78     ) const BOOST_OVERRIDE;
  79
  80     BOOST_SYMBOL_EXPORT std::codecvt_base::result
  81     do_in(
  82         std::mbstate_t & state,
  83         const char * first1,
  84         const char * last1,
  85         const char * & next1,
  86         wchar_t * first2,
  87         wchar_t * last2,
  88         wchar_t * & next2
  89     ) const BOOST_OVERRIDE;
  90
  91     BOOST_SYMBOL_EXPORT int do_encoding( ) const throw( ) BOOST_OVERRIDE {
  92         return sizeof(wchar_t) / sizeof(char);
  93     }
  94
  95     BOOST_SYMBOL_EXPORT bool do_always_noconv() const throw() BOOST_OVERRIDE {
  96         return false;
  97     }
  98
  99     BOOST_SYMBOL_EXPORT int do_max_length( ) const throw( ) BOOST_OVERRIDE {
 100         return do_encoding();
 101     }
 102 public:
 103     BOOST_SYMBOL_EXPORT explicit codecvt_null(std::size_t no_locale_manage = 0);
 104
 105     BOOST_SYMBOL_EXPORT ~codecvt_null() BOOST_OVERRIDE ;
 106 };
 107
 108 } // namespace archive
 109 } // namespace boost
 110
 111 #ifdef BOOST_MSVC
 112 #  pragma warning(pop)
 113 #endif
 114 //#include <boost/archive/detail/abi_suffix.hpp> // pop pragmas
 115
 116 #endif //BOOST_ARCHIVE_CODECVT_NULL_HPP