ceph/src/boost/boost/archive/basic_streambuf_locale_saver.hpp

   1 #ifndef BOOST_ARCHIVE_BASIC_STREAMBUF_LOCALE_SAVER_HPP
   2 #define BOOST_ARCHIVE_BASIC_STREAMBUF_LOCALE_SAVER_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 // basic_streambuf_locale_saver.hpp
  11
  12 // (C) Copyright 2005 Robert Ramey - http://www.rrsd.com
  13
  14 // Use, modification and distribution is subject to the Boost Software
  15 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
  16 // http://www.boost.org/LICENSE_1_0.txt)
  17
  18 //  See http://www.boost.org for updates, documentation, and revision history.
  19
  20 // note derived from boost/io/ios_state.hpp
  21 // Copyright 2002, 2005 Daryle Walker.  Use, modification, and distribution
  22 // are subject to the Boost Software License, Version 1.0.  (See accompanying
  23 // file LICENSE_1_0.txt or a copy at <http://www.boost.org/LICENSE_1_0.txt>.)
  24
  25 //  See <http://www.boost.org/libs/io/> for the library's home page.
  26
  27 #ifndef BOOST_NO_STD_LOCALE
  28
  29 #include <locale>     // for std::locale
  30 #include <ios>
  31 #include <streambuf>  // for std::basic_streambuf
  32
  33 #include <boost/config.hpp>
  34 #include <boost/noncopyable.hpp>
  35
  36 #ifdef BOOST_MSVC
  37 #  pragma warning(push)
  38 #  pragma warning(disable : 4511 4512)
  39 #endif
  40
  41 namespace boost{
  42 namespace archive{
  43
  44 template < typename Ch, class Tr >
  45 class basic_streambuf_locale_saver :
  46     private boost::noncopyable
  47 {
  48 public:
  49     explicit basic_streambuf_locale_saver(std::basic_streambuf<Ch, Tr> &s) :
  50         m_streambuf(s),
  51         m_locale(s.getloc())
  52     {}
  53     ~basic_streambuf_locale_saver(){
  54         m_streambuf.pubsync();
  55         m_streambuf.pubimbue(m_locale);
  56     }
  57 private:
  58     std::basic_streambuf<Ch, Tr> &       m_streambuf;
  59     std::locale const  m_locale;
  60 };
  61
  62 template < typename Ch, class Tr >
  63 class basic_istream_locale_saver :
  64     private boost::noncopyable
  65 {
  66 public:
  67     explicit basic_istream_locale_saver(std::basic_istream<Ch, Tr> &s) :
  68         m_istream(s),
  69         m_locale(s.getloc())
  70     {}
  71     ~basic_istream_locale_saver(){
  72         // libstdc++ crashes without this
  73         m_istream.sync();
  74         m_istream.imbue(m_locale);
  75     }
  76 private:
  77     std::basic_istream<Ch, Tr> & m_istream;
  78     std::locale const  m_locale;
  79 };
  80
  81 template < typename Ch, class Tr >
  82 class basic_ostream_locale_saver :
  83     private boost::noncopyable
  84 {
  85 public:
  86     explicit basic_ostream_locale_saver(std::basic_ostream<Ch, Tr> &s) :
  87         m_ostream(s),
  88         m_locale(s.getloc())
  89     {}
  90     ~basic_ostream_locale_saver(){
  91         m_ostream.flush();
  92         m_ostream.imbue(m_locale);
  93     }
  94 private:
  95     std::basic_ostream<Ch, Tr> & m_ostream;
  96     std::locale const  m_locale;
  97 };
  98
  99
 100 } // archive
 101 } // boost
 102
 103 #ifdef BOOST_MSVC
 104 #pragma warning(pop)
 105 #endif
 106
 107 #endif // BOOST_NO_STD_LOCALE
 108 #endif // BOOST_ARCHIVE_BASIC_STREAMBUF_LOCALE_SAVER_HPP