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316 lines
9.3 KiB
C++
316 lines
9.3 KiB
C++
#ifndef PORTABLE_BINARY_OARCHIVE_HPP
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#define PORTABLE_BINARY_OARCHIVE_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_oarchive.hpp
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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 <ostream>
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#include <boost/version.hpp>
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#include <boost/serialization/string.hpp>
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#include <boost/archive/archive_exception.hpp>
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#include <boost/archive/basic_binary_oprimitive.hpp>
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#include <boost/archive/detail/common_oarchive.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_oprimitive.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_oarchive_exception :
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public boost::archive::archive_exception
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{
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public:
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typedef enum {
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invalid_flags
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} exception_code;
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portable_binary_oarchive_exception(exception_code c = invalid_flags )
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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(code){
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case invalid_flags:
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msg = "cannot be both big and little endian";
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default:
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boost::archive::archive_exception::what();
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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" output binary archive. This is a variation of the native binary
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// archive. it addresses integer size and endienness so that binary archives can
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// be passed across systems. Note:floating point types not addressed here
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class portable_binary_oarchive :
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public boost::archive::basic_binary_oprimitive<
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portable_binary_oarchive,
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std::ostream::char_type,
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std::ostream::traits_type
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>,
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public boost::archive::detail::common_oarchive<
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portable_binary_oarchive
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>
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{
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typedef boost::archive::basic_binary_oprimitive<
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portable_binary_oarchive,
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std::ostream::char_type,
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std::ostream::traits_type
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> primitive_base_t;
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typedef boost::archive::detail::common_oarchive<
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portable_binary_oarchive
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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 save below
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friend class boost::archive::detail::interface_oarchive<
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portable_binary_oarchive
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>;
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friend class boost::archive::save_access;
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protected:
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#endif
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unsigned int m_flags;
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void save_impl(const boost::intmax_t l, const char maxsize);
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// add base class to the places considered when matching
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// save function to a specific set of arguments. Note, this didn't
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// work on my MSVC 7.0 system so we use the sure-fire method below
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// using archive_base_t::save;
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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 save(const T & t){
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save_impl(t, sizeof(T));
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}
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void save(const std::string & t){
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this->primitive_base_t::save(t);
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}
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#ifndef BOOST_NO_STD_WSTRING
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void save(const std::wstring & t){
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this->primitive_base_t::save(t);
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}
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#endif
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void save(const float & t){
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this->primitive_base_t::save(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 save(const double & t){
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this->primitive_base_t::save(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 save(const char & t){
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this->primitive_base_t::save(t);
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}
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void save(const unsigned char & t){
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this->primitive_base_t::save(t);
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}
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// default processing - kick back to base class. Note the
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// extra stuff to get it passed borland compilers
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typedef boost::archive::detail::common_oarchive<portable_binary_oarchive>
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detail_common_oarchive;
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#if BOOST_VERSION > 105800
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template<class T>
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void save_override(T & t){
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this->detail_common_oarchive::save_override(t);
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}
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// explicitly convert to char * to avoid compile ambiguities
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void save_override(const boost::archive::class_name_type & t){
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const std::string s(t);
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* this << s;
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}
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// binary files don't include the optional information
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void save_override(
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const boost::archive::class_id_optional_type & /* t */
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){}
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#else
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template<class T>
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void save_override(T & t, int){
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this->detail_common_oarchive::save_override(t, 0);
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}
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// explicitly convert to char * to avoid compile ambiguities
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void save_override(const boost::archive::class_name_type & t, int){
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const std::string s(t);
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* this << s;
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}
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// binary files don't include the optional information
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void save_override(
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const boost::archive::class_id_optional_type & /* t */, int
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){}
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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_oarchive(std::ostream & os, unsigned flags = 0) :
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primitive_base_t(
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* os.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(flags & (endian_big | endian_little))
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{
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init(flags);
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}
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portable_binary_oarchive(
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std::basic_streambuf<
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std::ostream::char_type,
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std::ostream::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_oarchive)
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#endif
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// required by export in boost <= 1.34
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#define BOOST_ARCHIVE_CUSTOM_OARCHIVE_TYPES portable_binary_oarchive
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/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
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// portable_binary_oarchive.cpp
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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 <ostream>
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#include <boost/detail/endian.hpp>
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namespace boost { namespace archive {
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inline void
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portable_binary_oarchive::save_impl(
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const boost::intmax_t l,
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const char maxsize
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){
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signed char size = 0;
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if(l == 0){
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this->primitive_base_t::save(size);
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return;
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}
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boost::intmax_t ll;
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bool negative = (l < 0);
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if(negative)
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ll = -l;
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else
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ll = l;
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do{
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ll >>= CHAR_BIT;
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++size;
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}while(ll != 0);
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this->primitive_base_t::save(
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static_cast<signed char>(negative ? -size : size)
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);
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if(negative)
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ll = -l;
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else
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ll = l;
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char * cptr = reinterpret_cast<char *>(& ll);
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#ifdef BOOST_BIG_ENDIAN
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cptr += (sizeof(boost::intmax_t) - size);
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if(m_flags & endian_little)
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reverse_bytes(size, cptr);
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#else
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if(m_flags & endian_big)
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reverse_bytes(size, cptr);
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#endif
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this->primitive_base_t::save_binary(cptr, size);
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}
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inline void
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portable_binary_oarchive::init(unsigned int flags) {
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if(m_flags == (endian_big | endian_little)){
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boost::serialization::throw_exception(
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portable_binary_oarchive_exception()
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);
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}
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if(0 == (flags & boost::archive::no_header)){
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// write signature in an archive version independent manner
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const std::string file_signature(
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boost::archive::BOOST_ARCHIVE_SIGNATURE()
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);
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* this << file_signature;
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// ignore archive version checking
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const boost::archive::library_version_type v{};
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/*
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// write library version
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const boost::archive::library_version_type v(
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boost::archive::BOOST_ARCHIVE_VERSION()
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);
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*/
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* this << v;
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}
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save(static_cast<unsigned char>(m_flags >> 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_oarchive>;
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}
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// template class basic_binary_oprimitive<
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// portable_binary_oarchive,
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// std::ostream::char_type,
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// std::ostream::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_OARCHIVE_HPP
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