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/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
// demo_fast_binary_archive.cpp
// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
// Use, modification and distribution is subject to the Boost Software
// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
// should pass compilation and execution
#include <sstream>
#include <boost/static_assert.hpp>
#include <boost/type_traits/is_array.hpp>
#include <boost/pfto.hpp>
#define BOOST_ARCHIVE_SOURCE
#include <boost/archive/binary_oarchive.hpp>
#include <boost/archive/binary_iarchive.hpp>
// include template definitions for base classes used. Otherwise
// you'll get link failure with undefined symbols
#include <boost/archive/impl/basic_binary_oprimitive.ipp>
#include <boost/archive/impl/basic_binary_iprimitive.ipp>
#include <boost/archive/impl/basic_binary_oarchive.ipp>
#include <boost/archive/impl/basic_binary_iarchive.ipp>
#include <boost/archive/impl/archive_pointer_iserializer.ipp>
#include <boost/archive/impl/archive_pointer_oserializer.ipp>
using namespace boost::archive;
/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
// "Fast" output binary archive. This is a variation of the native binary
class fast_binary_oarchive :
// don't derive from binary_oarchive !!!
public binary_oarchive_impl<fast_binary_oarchive>
{
typedef fast_binary_oarchive derived_t;
#ifndef BOOST_NO_MEMBER_TEMPLATE_FRIENDS
public:
#else
friend class boost::archive::detail::interface_oarchive<derived_t>;
friend class basic_binary_oarchive<derived_t>;
friend class basic_binary_oprimitive<derived_t, std::ostream>;
friend class boost::archive::save_access;
#endif
// add base class to the places considered when matching
// save function to a specific set of arguments. Note, this didn't
// work on my MSVC 7.0 system
// using binary_oarchive_impl<derived_t>::load_override;
// so we use the sure-fire method below. This failed to work as well
template<class T>
void save_override(T & t, BOOST_PFTO int){
binary_oarchive_impl<fast_binary_oarchive>::save_override(t, 0);
// verify that this program is in fact working by making sure
// that arrays are getting passed here
BOOST_STATIC_ASSERT(! (boost::is_array<T>::value) );
}
template<int N>
void save_override(const int (& t)[N] , int){
save_binary(t, sizeof(t));
}
template<int N>
void save_override(const unsigned int (& t)[N], int){
save_binary(t, sizeof(t));
}
template<int N>
void save_override(const long (& t)[N], int){
save_binary(t, sizeof(t));
}
template<int N>
void save_override(const unsigned long (& t)[N], int){
save_binary(t, sizeof(t));
}
public:
fast_binary_oarchive(std::ostream & os, unsigned flags = 0) :
binary_oarchive_impl<derived_t>(os, flags)
{}
};
/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
// "Fast" input binary archive. This is a variation of the native binary
class fast_binary_iarchive :
// don't derive from binary_oarchive !!!
public binary_iarchive_impl<fast_binary_iarchive>
{
typedef fast_binary_iarchive derived_t;
#ifndef BOOST_NO_MEMBER_TEMPLATE_FRIENDS
public:
#else
friend class boost::archive::detail::interface_iarchive<derived_t>;
friend class basic_binary_iarchive<derived_t>;
friend class basic_binary_iprimitive<derived_t, std::istream>;
friend class boost::archive::load_access;
#endif
// add base class to the places considered when matching
// save function to a specific set of arguments. Note, this didn't
// work on my MSVC 7.0 system
// using binary_oarchive_impl<derived_t>::load_override;
// so we use the sure-fire method below. This failed to work as well
template<class T>
void load_override(T & t, BOOST_PFTO int){
binary_iarchive_impl<derived_t>::load_override(t, 0);
BOOST_STATIC_ASSERT(! (boost::is_array<T>::value) );
}
template<int N>
void load_override(int (& t)[N], int){
load_binary(t, sizeof(t));
}
template<int N>
void load_override(unsigned int (& t)[N], int){
load_binary(t, sizeof(t));
}
template<int N>
void load_override(long (& t)[N], int){
load_binary(t, sizeof(t));
}
template<int N>
void load_override(unsigned long (& t)[N], int){
load_binary(t, sizeof(t));
}
public:
fast_binary_iarchive(std::istream & is, unsigned flags = 0) :
binary_iarchive_impl<derived_t>(is,flags)
{}
};
int main( int argc, char* argv[] )
{
const int a[3] = {1, 2, 3};
int a1[3] = {4, 5, 6};
std::stringstream ss;
{
fast_binary_oarchive pboa(ss);
pboa << a;
}
{
fast_binary_iarchive pbia(ss);
pbia >> a1;
}
return (a[0] != a1[0]) || (a[1] != a1[1]) || (a[2] != a1[2]);
}
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