boost/archive/basic_text_oprimitive.hpp

   1 #ifndef BOOST_ARCHIVE_BASIC_TEXT_OPRIMITIVE_HPP
   2 #define BOOST_ARCHIVE_BASIC_TEXT_OPRIMITIVE_HPP
   3
   4 // MS compatible compilers support #pragma once
   5 #if defined(_MSC_VER) && (_MSC_VER >= 1020)
   6 # pragma once
   7 #endif
   8
   9 /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
  10 // basic_text_oprimitive.hpp
  11
  12 // (C) Copyright 2002 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 // archives stored as text - note these ar templated on the basic
  20 // stream templates to accommodate wide (and other?) kind of characters
  21 //
  22 // note the fact that on libraries without wide characters, ostream is
  23 // is not a specialization of basic_ostream which in fact is not defined
  24 // in such cases.   So we can't use basic_ostream<OStream::char_type> but rather
  25 // use two template parameters
  26
  27 #include <iomanip>
  28 #include <locale>
  29 #include <boost/config/no_tr1/cmath.hpp> // isnan
  30 #include <cassert>
  31 #include <cstddef> // size_t
  32
  33 #include <boost/config.hpp>
  34 #include <boost/detail/workaround.hpp>
  35 #if BOOST_WORKAROUND(BOOST_DINKUMWARE_STDLIB, == 1)
  36 #include <boost/archive/dinkumware.hpp>
  37 #endif
  38
  39 #if defined(BOOST_NO_STDC_NAMESPACE)
  40 namespace std{
  41     using ::size_t;
  42     #if ! defined(BOOST_DINKUMWARE_STDLIB) && ! defined(__SGI_STL_PORT)
  43         using ::locale;
  44     #endif
  45 } // namespace std
  46 #endif
  47
  48 #include <boost/limits.hpp>
  49 #include <boost/io/ios_state.hpp>
  50 #include <boost/scoped_ptr.hpp>
  51 #include <boost/serialization/throw_exception.hpp>
  52
  53 #include <boost/archive/archive_exception.hpp>
  54
  55 #include <boost/archive/detail/abi_prefix.hpp> // must be the last header
  56
  57 namespace boost {
  58 namespace archive {
  59
  60 class save_access;
  61
  62 /////////////////////////////////////////////////////////////////////////
  63 // class basic_text_oprimitive - output of prmitives to stream
  64 template<class OStream>
  65 class basic_text_oprimitive
  66 {
  67 #ifndef BOOST_NO_MEMBER_TEMPLATE_FRIENDS
  68 protected:
  69 #else
  70 public:
  71 #endif
  72     OStream &os;
  73     io::ios_flags_saver flags_saver;
  74     io::ios_precision_saver precision_saver;
  75
  76     #ifndef BOOST_NO_STD_LOCALE
  77     boost::scoped_ptr<std::locale> archive_locale;
  78     io::basic_ios_locale_saver<
  79         BOOST_DEDUCED_TYPENAME OStream::char_type, BOOST_DEDUCED_TYPENAME OStream::traits_type
  80     > locale_saver;
  81     #endif
  82
  83     // default saving of primitives.
  84     template<class T>
  85     void save(const T &t){
  86         if(os.fail())
  87             boost::serialization::throw_exception(
  88                 archive_exception(archive_exception::stream_error)
  89             );
  90         os << t;
  91     }
  92
  93     /////////////////////////////////////////////////////////
  94     // fundamental types that need special treatment
  95     void save(const bool t){
  96         // trap usage of invalid uninitialized boolean which would
  97         // otherwise crash on load.
  98         assert(0 == static_cast<int>(t) || 1 == static_cast<int>(t));
  99         if(os.fail())
 100             boost::serialization::throw_exception(
 101                 archive_exception(archive_exception::stream_error)
 102             );
 103         os << t;
 104     }
 105     void save(const signed char t)
 106     {
 107         if(os.fail())
 108             boost::serialization::throw_exception(
 109                 archive_exception(archive_exception::stream_error)
 110             );
 111         os << static_cast<short int>(t);
 112     }
 113     void save(const unsigned char t)
 114     {
 115         if(os.fail())
 116             boost::serialization::throw_exception(
 117                 archive_exception(archive_exception::stream_error)
 118             );
 119         os << static_cast<short unsigned int>(t);
 120     }
 121     void save(const char t)
 122     {
 123         if(os.fail())
 124             boost::serialization::throw_exception(
 125                 archive_exception(archive_exception::stream_error)
 126             );
 127         os << static_cast<short int>(t);
 128     }
 129     #ifndef BOOST_NO_INTRINSIC_WCHAR_T
 130     void save(const wchar_t t)
 131     {
 132         if(os.fail())
 133             boost::serialization::throw_exception(
 134                 archive_exception(archive_exception::stream_error)
 135             );
 136         os << static_cast<int>(t);
 137     }
 138     #endif
 139     void save(const float t)
 140     {
 141         // must be a user mistake - can't serialize un-initialized data
 142         if(os.fail())
 143             boost::serialization::throw_exception(
 144                 archive_exception(archive_exception::stream_error)
 145             );
 146         os << std::setprecision(std::numeric_limits<float>::digits10 + 2);
 147         os << t;
 148     }
 149     void save(const double t)
 150     {
 151         // must be a user mistake - can't serialize un-initialized data
 152         if(os.fail())
 153             boost::serialization::throw_exception(
 154                 archive_exception(archive_exception::stream_error)
 155             );
 156         os << std::setprecision(std::numeric_limits<double>::digits10 + 2);
 157         os << t;
 158     }
 159     BOOST_ARCHIVE_OR_WARCHIVE_DECL(BOOST_PP_EMPTY())
 160     basic_text_oprimitive(OStream & os, bool no_codecvt);
 161     BOOST_ARCHIVE_OR_WARCHIVE_DECL(BOOST_PP_EMPTY())
 162     ~basic_text_oprimitive();
 163 public:
 164     // unformatted append of one character
 165     void put(int c){
 166         if(os.fail())
 167             boost::serialization::throw_exception(
 168                 archive_exception(archive_exception::stream_error)
 169             );
 170         os.put(c);
 171     }
 172     // unformatted append of null terminated string
 173     void put(const char * s){
 174         if(os.fail())
 175             boost::serialization::throw_exception(
 176                 archive_exception(archive_exception::stream_error)
 177             );
 178         while('\0' != *s)
 179             os.put(*s++);
 180     }
 181     BOOST_ARCHIVE_OR_WARCHIVE_DECL(void)
 182     save_binary(const void *address, std::size_t count);
 183 };
 184
 185 } //namespace boost
 186 } //namespace archive
 187
 188 #include <boost/archive/detail/abi_suffix.hpp> // pops abi_suffix.hpp pragmas
 189
 190 #endif // BOOST_ARCHIVE_BASIC_TEXT_OPRIMITIVE_HPP