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     virtual bool do_always_noconv() const throw() {
  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     virtual ~codecvt_null(){};
  63 };
  64
  65 template<>
  66 class BOOST_WARCHIVE_DECL codecvt_null<wchar_t> :
  67     public std::codecvt<wchar_t, char, std::mbstate_t>
  68 {
  69     virtual 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;
  79     virtual std::codecvt_base::result
  80     do_in(
  81         std::mbstate_t & state,
  82         const char * first1,
  83         const char * last1,
  84         const char * & next1,
  85         wchar_t * first2,
  86         wchar_t * last2,
  87         wchar_t * & next2
  88     ) const;
  89     virtual int do_encoding( ) const throw( ){
  90         return sizeof(wchar_t) / sizeof(char);
  91     }
  92     virtual int do_max_length( ) const throw( ){
  93         return do_encoding();
  94     }
  95 public:
  96     explicit codecvt_null(std::size_t no_locale_manage = 0) :
  97         std::codecvt<wchar_t, char, std::mbstate_t>(no_locale_manage)
  98     {}
  99     //virtual ~codecvt_null(){};
 100 };
 101
 102 } // namespace archive
 103 } // namespace boost
 104
 105 #ifdef BOOST_MSVC
 106 #  pragma warning(pop)
 107 #endif
 108 #include <boost/archive/detail/abi_suffix.hpp> // pop pragmas
 109
 110 #endif //BOOST_ARCHIVE_CODECVT_NULL_HPP