annotate DEPENDENCIES/generic/include/boost/serialization/optional.hpp @ 133:4acb5d8d80b6 tip

Don't fail environmental check if README.md exists (but .txt and no-suffix don't)
author Chris Cannam
date Tue, 30 Jul 2019 12:25:44 +0100
parents c530137014c0
children
rev   line source
Chris@16 1 /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
Chris@16 2
Chris@16 3 // (C) Copyright 2002-4 Pavel Vozenilek .
Chris@16 4 // Use, modification and distribution is subject to the Boost Software
Chris@16 5 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
Chris@16 6 // http://www.boost.org/LICENSE_1_0.txt)
Chris@16 7
Chris@16 8 // Provides non-intrusive serialization for boost::optional.
Chris@16 9
Chris@16 10 #ifndef BOOST_SERIALIZATION_OPTIONAL_HPP_
Chris@16 11 #define BOOST_SERIALIZATION_OPTIONAL_HPP_
Chris@16 12
Chris@101 13 #if defined(_MSC_VER)
Chris@16 14 # pragma once
Chris@16 15 #endif
Chris@16 16
Chris@16 17 #include <boost/config.hpp>
Chris@16 18
Chris@16 19 #include <boost/archive/detail/basic_iarchive.hpp>
Chris@16 20
Chris@16 21 #include <boost/optional.hpp>
Chris@16 22 #include <boost/serialization/item_version_type.hpp>
Chris@16 23 #include <boost/serialization/split_free.hpp>
Chris@16 24 #include <boost/serialization/level.hpp>
Chris@16 25 #include <boost/serialization/nvp.hpp>
Chris@16 26 #include <boost/serialization/version.hpp>
Chris@16 27 #include <boost/serialization/detail/stack_constructor.hpp>
Chris@16 28
Chris@16 29 // function specializations must be defined in the appropriate
Chris@16 30 // namespace - boost::serialization
Chris@16 31 namespace boost {
Chris@16 32 namespace serialization {
Chris@16 33
Chris@16 34 template<class Archive, class T>
Chris@16 35 void save(
Chris@16 36 Archive & ar,
Chris@16 37 const boost::optional< T > & t,
Chris@16 38 const unsigned int /*version*/
Chris@16 39 ){
Chris@16 40 const bool tflag = t.is_initialized();
Chris@16 41 ar << boost::serialization::make_nvp("initialized", tflag);
Chris@16 42 if (tflag){
Chris@16 43 const boost::serialization::item_version_type item_version(version< T >::value);
Chris@16 44 #if 0
Chris@16 45 const boost::archive::library_version_type library_version(
Chris@16 46 ar.get_library_version()
Chris@16 47 };
Chris@16 48 if(boost::archive::library_version_type(3) < library_version){
Chris@16 49 ar << BOOST_SERIALIZATION_NVP(item_version);
Chris@16 50 }
Chris@16 51 #else
Chris@16 52 ar << BOOST_SERIALIZATION_NVP(item_version);
Chris@16 53 #endif
Chris@16 54 ar << boost::serialization::make_nvp("value", *t);
Chris@16 55 }
Chris@16 56 }
Chris@16 57
Chris@16 58 template<class Archive, class T>
Chris@16 59 void load(
Chris@16 60 Archive & ar,
Chris@16 61 boost::optional< T > & t,
Chris@16 62 const unsigned int /*version*/
Chris@16 63 ){
Chris@16 64 bool tflag;
Chris@16 65 ar >> boost::serialization::make_nvp("initialized", tflag);
Chris@16 66 if (tflag){
Chris@16 67 boost::serialization::item_version_type item_version(0);
Chris@16 68 boost::archive::library_version_type library_version(
Chris@16 69 ar.get_library_version()
Chris@16 70 );
Chris@16 71 if(boost::archive::library_version_type(3) < library_version){
Chris@16 72 // item_version is handled as an attribute so it doesnt need an NVP
Chris@16 73 ar >> BOOST_SERIALIZATION_NVP(item_version);
Chris@16 74 }
Chris@16 75 detail::stack_construct<Archive, T> aux(ar, item_version);
Chris@16 76 ar >> boost::serialization::make_nvp("value", aux.reference());
Chris@16 77 t.reset(aux.reference());
Chris@16 78 }
Chris@16 79 else {
Chris@16 80 t.reset();
Chris@16 81 }
Chris@16 82 }
Chris@16 83
Chris@16 84 template<class Archive, class T>
Chris@16 85 void serialize(
Chris@16 86 Archive & ar,
Chris@16 87 boost::optional< T > & t,
Chris@16 88 const unsigned int version
Chris@16 89 ){
Chris@16 90 boost::serialization::split_free(ar, t, version);
Chris@16 91 }
Chris@16 92
Chris@16 93 } // serialization
Chris@16 94 } // namespace boost
Chris@16 95
Chris@16 96 #endif // BOOST_SERIALIZATION_OPTIONAL_HPP_