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374 lines
12 KiB
C++
374 lines
12 KiB
C++
#ifndef PORTABLE_BINARY_IARCHIVE_HPP
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#define PORTABLE_BINARY_IARCHIVE_HPP
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// MS compatible compilers support #pragma once
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#if defined(_MSC_VER)
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# pragma once
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#endif
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#if defined(_MSC_VER)
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#pragma warning( push )
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#pragma warning( disable : 4244 )
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#endif
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/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
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// portable_binary_iarchive.hpp
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// (C) Copyright 2002-7 Robert Ramey - http://www.rrsd.com .
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// Use, modification and distribution is subject to the Boost Software
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// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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// See http://www.boost.org for updates, documentation, and revision history.
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#include <istream>
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#include <boost/version.hpp>
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#include <boost/serialization/string.hpp>
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#include <boost/serialization/item_version_type.hpp>
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#include <boost/archive/archive_exception.hpp>
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#include <boost/archive/basic_binary_iprimitive.hpp>
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#include <boost/archive/detail/common_iarchive.hpp>
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#include <boost/archive/detail/register_archive.hpp>
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#include <boost/archive/portable_binary_archive.hpp>
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#include <boost/archive/impl/basic_binary_iprimitive.ipp>
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namespace boost { namespace archive {
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/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
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// exception to be thrown if integer read from archive doesn't fit
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// variable being loaded
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class portable_binary_iarchive_exception :
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public boost::archive::archive_exception
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{
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public:
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enum exception_code {
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incompatible_integer_size
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} m_exception_code ;
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portable_binary_iarchive_exception(exception_code c = incompatible_integer_size ) :
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boost::archive::archive_exception(boost::archive::archive_exception::other_exception),
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m_exception_code(c)
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{}
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virtual const char *what( ) const throw( )
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{
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const char *msg = "programmer error";
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switch(m_exception_code){
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case incompatible_integer_size:
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msg = "integer cannot be represented";
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break;
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default:
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msg = boost::archive::archive_exception::what();
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assert(false);
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break;
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}
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return msg;
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}
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};
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/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
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// "Portable" input binary archive. It addresses integer size and endienness so
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// that binary archives can be passed across systems. Note:floating point types
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// not addressed here
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class portable_binary_iarchive :
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public boost::archive::basic_binary_iprimitive<
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portable_binary_iarchive,
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std::istream::char_type,
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std::istream::traits_type
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>,
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public boost::archive::detail::common_iarchive<
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portable_binary_iarchive
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>
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{
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typedef boost::archive::basic_binary_iprimitive<
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portable_binary_iarchive,
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std::istream::char_type,
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std::istream::traits_type
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> primitive_base_t;
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typedef boost::archive::detail::common_iarchive<
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portable_binary_iarchive
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> archive_base_t;
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#ifndef BOOST_NO_MEMBER_TEMPLATE_FRIENDS
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public:
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#else
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friend archive_base_t;
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friend primitive_base_t; // since with override load below
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friend class boost::archive::detail::interface_iarchive<
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portable_binary_iarchive
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>;
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friend class boost::archive::load_access;
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protected:
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#endif
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unsigned int m_flags;
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void load_impl(boost::intmax_t & l, char maxsize);
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// default fall through for any types not specified here
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template<class T>
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void load(T & t){
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boost::intmax_t l;
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load_impl(l, sizeof(T));
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// use cast to avoid compile time warning
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//t = static_cast< T >(l);
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t = T(l);
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}
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void load(boost::serialization::item_version_type & t){
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boost::intmax_t l;
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load_impl(l, sizeof(boost::serialization::item_version_type));
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// use cast to avoid compile time warning
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t = boost::serialization::item_version_type(l);
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}
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void load(boost::archive::version_type & t){
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boost::intmax_t l;
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load_impl(l, sizeof(boost::archive::version_type));
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// use cast to avoid compile time warning
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t = boost::archive::version_type(l);
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}
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void load(boost::archive::class_id_type & t){
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boost::intmax_t l;
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load_impl(l, sizeof(boost::archive::class_id_type));
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// use cast to avoid compile time warning
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t = boost::archive::class_id_type(static_cast<int>(l));
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}
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void load(std::string & t){
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this->primitive_base_t::load(t);
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}
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#ifndef BOOST_NO_STD_WSTRING
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void load(std::wstring & t){
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this->primitive_base_t::load(t);
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}
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#endif
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void load(float & t){
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this->primitive_base_t::load(t);
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// floats not supported
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//BOOST_STATIC_ASSERT(false);
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}
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void load(double & t){
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this->primitive_base_t::load(t);
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// doubles not supported
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//BOOST_STATIC_ASSERT(false);
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}
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void load(char & t){
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this->primitive_base_t::load(t);
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}
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void load(unsigned char & t){
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this->primitive_base_t::load(t);
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}
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typedef boost::archive::detail::common_iarchive<portable_binary_iarchive>
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detail_common_iarchive;
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#if BOOST_VERSION > 105800
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template<class T>
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void load_override(T & t){
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this->detail_common_iarchive::load_override(t);
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}
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void load_override(boost::archive::class_name_type & t);
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// binary files don't include the optional information
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void load_override(boost::archive::class_id_optional_type &){}
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#else
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template<class T>
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void load_override(T & t, int){
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this->detail_common_iarchive::load_override(t, 0);
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}
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void load_override(boost::archive::class_name_type & t, int);
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// binary files don't include the optional information
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void load_override(boost::archive::class_id_optional_type &, int){}
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#endif
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void init(unsigned int flags);
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public:
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portable_binary_iarchive(std::istream & is, unsigned flags = 0) :
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primitive_base_t(
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* is.rdbuf(),
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0 != (flags & boost::archive::no_codecvt)
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),
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archive_base_t(flags),
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m_flags(0)
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{
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init(flags);
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}
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portable_binary_iarchive(
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std::basic_streambuf<
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std::istream::char_type,
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std::istream::traits_type
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> & bsb,
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unsigned int flags
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) :
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primitive_base_t(
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bsb,
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0 != (flags & boost::archive::no_codecvt)
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),
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archive_base_t(flags),
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m_flags(0)
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{
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init(flags);
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}
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};
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} }
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// required by export in boost version > 1.34
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#ifdef BOOST_SERIALIZATION_REGISTER_ARCHIVE
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BOOST_SERIALIZATION_REGISTER_ARCHIVE(portable_binary_iarchive)
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#endif
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// required by export in boost <= 1.34
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#define BOOST_ARCHIVE_CUSTOM_IARCHIVE_TYPES portable_binary_iarchive
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/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
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// portable_binary_iarchive.cpp
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// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
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// Use, modification and distribution is subject to the Boost Software
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// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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// See http://www.boost.org for updates, documentation, and revision history.
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#include <istream>
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#include <string>
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#include <boost/detail/endian.hpp>
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#include <boost/serialization/throw_exception.hpp>
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#include <boost/archive/archive_exception.hpp>
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namespace boost { namespace archive {
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inline void
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portable_binary_iarchive::load_impl(boost::intmax_t & l, char maxsize){
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signed char size;
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l = 0;
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this->primitive_base_t::load(size);
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if(0 == size){
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return;
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}
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bool negative = (size < 0);
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if(negative)
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size = -size;
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if(size > maxsize)
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boost::serialization::throw_exception(
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portable_binary_iarchive_exception()
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);
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char * cptr = reinterpret_cast<char *>(& l);
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#ifdef BOOST_BIG_ENDIAN
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cptr += (sizeof(boost::intmax_t) - size);
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#endif
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this->primitive_base_t::load_binary(cptr, size);
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#ifdef BOOST_BIG_ENDIAN
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if(m_flags & endian_little)
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#else
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if(m_flags & endian_big)
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#endif
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reverse_bytes(size, cptr);
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if(negative)
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l = -l;
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}
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#if BOOST_VERSION > 105800
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inline void
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portable_binary_iarchive::load_override(
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boost::archive::class_name_type & t
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){
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std::string cn;
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cn.reserve(BOOST_SERIALIZATION_MAX_KEY_SIZE);
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load_override(cn);
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if(cn.size() > (BOOST_SERIALIZATION_MAX_KEY_SIZE - 1))
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boost::serialization::throw_exception(
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boost::archive::archive_exception(
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boost::archive::archive_exception::invalid_class_name)
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);
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std::memcpy(t, cn.data(), cn.size());
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// borland tweak
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t.t[cn.size()] = '\0';
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}
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#else
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inline void
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portable_binary_iarchive::load_override(
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boost::archive::class_name_type & t, int
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){
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std::string cn;
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cn.reserve(BOOST_SERIALIZATION_MAX_KEY_SIZE);
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load_override(cn, 0);
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if(cn.size() > (BOOST_SERIALIZATION_MAX_KEY_SIZE - 1))
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boost::serialization::throw_exception(
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boost::archive::archive_exception(
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boost::archive::archive_exception::invalid_class_name)
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);
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std::memcpy(t, cn.data(), cn.size());
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// borland tweak
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t.t[cn.size()] = '\0';
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}
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#endif
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inline void
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portable_binary_iarchive::init(unsigned int flags){
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if(0 == (flags & boost::archive::no_header)){
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// read signature in an archive version independent manner
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std::string file_signature;
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* this >> file_signature;
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if(file_signature != boost::archive::BOOST_ARCHIVE_SIGNATURE())
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boost::serialization::throw_exception(
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boost::archive::archive_exception(
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boost::archive::archive_exception::invalid_signature
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)
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);
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// make sure the version of the reading archive library can
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// support the format of the archive being read
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boost::archive::library_version_type input_library_version;
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* this >> input_library_version;
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// ignore archive version checking
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/*
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// extra little .t is to get around borland quirk
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if(boost::archive::BOOST_ARCHIVE_VERSION() < input_library_version)
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boost::serialization::throw_exception(
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boost::archive::archive_exception(
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boost::archive::archive_exception::unsupported_version
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)
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);
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*/
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#if BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3205))
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this->set_library_version(input_library_version);
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//#else
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//#if ! BOOST_WORKAROUND(BOOST_MSVC, <= 1200)
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//detail::
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//#endif
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boost::archive::detail::basic_iarchive::set_library_version(
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input_library_version
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);
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#endif
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}
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unsigned char x;
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load(x);
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m_flags = x << CHAR_BIT;
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}
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} }
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namespace boost {
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namespace archive {
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namespace detail {
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template class archive_serializer_map<portable_binary_iarchive>;
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}
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// template class basic_binary_iprimitive<
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// portable_binary_iarchive,
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// std::istream::char_type,
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// std::istream::traits_type
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//> ;
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} // namespace archive
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} // namespace boost
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#if defined(_MSC_VER)
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#pragma warning( pop )
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#endif
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#endif // PORTABLE_BINARY_IARCHIVE_HPP
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