ceph/src/boost/libs/serialization/include/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 #include <cwchar>   // for mbstate_t
  22 #include <boost/config.hpp>
  23 #include <boost/archive/detail/auto_link_archive.hpp>
  24 #include <boost/archive/detail/abi_prefix.hpp> // must be the last header
  25
  26 #if defined(BOOST_NO_STDC_NAMESPACE)
  27 namespace std {
  28 // For STLport on WinCE, BOOST_NO_STDC_NAMESPACE can get defined if STLport is putting symbols in its own namespace.
  29 // In the case of codecvt, however, this does not mean that codecvt is in the global namespace (it will be in STLport's namespace)
  30 #  if !defined(__SGI_STL_PORT) && !defined(_STLPORT_VERSION)
  31     using ::codecvt;
  32 #  endif
  33     using ::mbstate_t;
  34     using ::size_t;
  35 } // namespace
  36 #endif
  37
  38 #ifdef BOOST_MSVC
  39 #  pragma warning(push)
  40 #  pragma warning(disable : 4511 4512)
  41 #endif
  42
  43 namespace boost {
  44 namespace archive {
  45
  46 template<class Ch>
  47 class codecvt_null;
  48
  49 template<>
  50 class codecvt_null<char> : public std::codecvt<char, char, std::mbstate_t>
  51 {
  52     virtual bool do_always_noconv() const throw() {
  53         return true;
  54     }
  55 public:
  56     explicit codecvt_null(std::size_t no_locale_manage = 0) :
  57         std::codecvt<char, char, std::mbstate_t>(no_locale_manage)
  58     {}
  59     virtual ~codecvt_null(){};
  60 };
  61
  62 template<>
  63 class BOOST_SYMBOL_VISIBLE codecvt_null<wchar_t> : public std::codecvt<wchar_t, char, std::mbstate_t>
  64 {
  65     virtual BOOST_WARCHIVE_DECL std::codecvt_base::result
  66     do_out(
  67         std::mbstate_t & state,
  68         const wchar_t * first1,
  69         const wchar_t * last1,
  70         const wchar_t * & next1,
  71         char * first2,
  72         char * last2,
  73         char * & next2
  74     ) const;
  75     virtual BOOST_WARCHIVE_DECL std::codecvt_base::result
  76     do_in(
  77         std::mbstate_t & state,
  78         const char * first1,
  79         const char * last1,
  80         const char * & next1,
  81         wchar_t * first2,
  82         wchar_t * last2,
  83         wchar_t * & next2
  84     ) const;
  85     virtual int do_encoding( ) const throw( ){
  86         return sizeof(wchar_t) / sizeof(char);
  87     }
  88     virtual int do_max_length( ) const throw( ){
  89         return do_encoding();
  90     }
  91 public:
  92     explicit codecvt_null(std::size_t no_locale_manage = 0) :
  93         std::codecvt<wchar_t, char, std::mbstate_t>(no_locale_manage)
  94     {}
  95     virtual ~codecvt_null(){};
  96 };
  97
  98 } // namespace archive
  99 } // namespace boost
 100
 101 #ifdef BOOST_MSVC
 102 #  pragma warning(pop)
 103 #endif
 104 #include <boost/archive/detail/abi_suffix.hpp> // pop pragmas
 105
 106 #endif //BOOST_ARCHIVE_CODECVT_NULL_HPP