173 lines
5.1 KiB
C++
173 lines
5.1 KiB
C++
#ifndef BOOST_SERIALIZATION_ARRAY_HPP
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#define BOOST_SERIALIZATION_ARRAY_HPP
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// (C) Copyright 2005 Matthias Troyer and Dave Abrahams
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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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//#include <iostream>
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#include <boost/config.hpp> // msvc 6.0 needs this for warning suppression
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#if defined(BOOST_NO_STDC_NAMESPACE)
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namespace std{
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using ::size_t;
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} // namespace std
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#endif
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#include <boost/serialization/nvp.hpp>
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#include <boost/serialization/split_member.hpp>
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#include <boost/serialization/wrapper.hpp>
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#include <boost/serialization/collection_size_type.hpp>
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#include <boost/mpl/always.hpp>
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#include <boost/mpl/apply.hpp>
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#include <boost/mpl/bool_fwd.hpp>
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#include <boost/type_traits/remove_const.hpp>
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#include <boost/type_traits/is_integral.hpp>
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#include <boost/static_assert.hpp>
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namespace boost { namespace serialization {
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// traits to specify whether to use an optimized array serialization
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template <class Archive>
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struct use_array_optimization : boost::mpl::always<boost::mpl::false_> {};
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template<class T>
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class array_wrapper :
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public wrapper_traits<const array_wrapper< T > >
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{
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private:
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array_wrapper & operator=(const array_wrapper & rhs);
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public:
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// note: I would like to make the copy constructor private but this breaks
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// make_array. So I try to make make_array a friend - but that doesn't
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// build. Need a C++ guru to explain this!
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template<class S>
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friend const boost::serialization::array_wrapper<T> make_array( T* t, S s);
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array_wrapper(const array_wrapper & rhs) :
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m_t(rhs.m_t),
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m_element_count(rhs.m_element_count)
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{}
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public:
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array_wrapper(T * t, std::size_t s) :
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m_t(t),
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m_element_count(s)
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{}
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// default implementation
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template<class Archive>
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void serialize_optimized(Archive &ar, const unsigned int, mpl::false_ ) const
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{
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// default implemention does the loop
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std::size_t c = count();
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T * t = address();
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while(0 < c--)
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ar & boost::serialization::make_nvp("item", *t++);
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}
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// optimized implementation
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template<class Archive>
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void serialize_optimized(Archive &ar, const unsigned int version, mpl::true_ )
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{
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boost::serialization::split_member(ar, *this, version);
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}
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// default implementation
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template<class Archive>
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void save(Archive &ar, const unsigned int version) const
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{
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ar.save_array(*this,version);
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}
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// default implementation
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template<class Archive>
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void load(Archive &ar, const unsigned int version)
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{
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ar.load_array(*this,version);
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}
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// default implementation
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template<class Archive>
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void serialize(Archive &ar, const unsigned int version)
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{
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typedef typename
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boost::serialization::use_array_optimization<Archive>::template apply<
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typename remove_const< T >::type
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>::type use_optimized;
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serialize_optimized(ar,version,use_optimized());
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}
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T * address() const
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{
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return m_t;
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}
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std::size_t count() const
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{
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return m_element_count;
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}
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private:
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T * const m_t;
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const std::size_t m_element_count;
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};
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template<class T, class S>
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inline
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const array_wrapper< T > make_array( T* t, S s){
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const array_wrapper< T > a(t, s);
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return a;
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}
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} } // end namespace boost::serialization
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// I can't figure out why BOOST_NO_CXX11_HDR_ARRAY
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// has been set for clang-11. So just make sure
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// it's reset now. Needs further research!!!
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#if defined(_LIBCPP_VERSION)
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#undef BOOST_NO_CXX11_HDR_ARRAY
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#endif
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#ifndef BOOST_NO_CXX11_HDR_ARRAY
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#include <array>
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namespace boost { namespace serialization {
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// implement serialization for std::array
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template <class Archive, class T, std::size_t N>
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void serialize(Archive& ar, std::array<T,N>& a, const unsigned int /* version */)
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{
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ar & boost::serialization::make_nvp(
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"elems",
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*static_cast<T (*)[N]>(static_cast<void *>(a.data()))
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);
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}
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} } // end namespace boost::serialization
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#endif
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#include <boost/array.hpp>
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namespace boost { namespace serialization {
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// implement serialization for boost::array
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template <class Archive, class T, std::size_t N>
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void serialize(Archive& ar, boost::array<T,N>& a, const unsigned int /* version */)
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{
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ar & boost::serialization::make_nvp("elems", a.elems);
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}
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} } // end namespace boost::serialization
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#define BOOST_SERIALIZATION_USE_ARRAY_OPTIMIZATION(Archive) \
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namespace boost { namespace serialization { \
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template <> struct use_array_optimization<Archive> { \
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template <class ValueType> \
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struct apply : boost::mpl::apply1<Archive::use_array_optimization \
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, typename boost::remove_const<ValueType>::type \
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>::type {}; \
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}; }}
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#endif //BOOST_SERIALIZATION_ARRAY_HPP
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