#ifndef BOOST_ARCHIVE_BINARY_IPRIMITIVE_HPP
#define BOOST_ARCHIVE_BINARY_IPRIMITIVE_HPP
// MS compatible compilers support #pragma once
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
# pragma once
#endif
#if defined(_MSC_VER)
#pragma warning( disable : 4800 )
#endif
/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
// basic_binary_iprimitive.hpp
//
// archives stored as native binary - this should be the fastest way
// to archive the state of a group of obects. It makes no attempt to
// convert to any canonical form.
// IN GENERAL, ARCHIVES CREATED WITH THIS CLASS WILL NOT BE READABLE
// ON PLATFORM APART FROM THE ONE THEY ARE CREATED ON
// (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)
// See http://www.boost.org for updates, documentation, and revision history.
#include <iosfwd>
#include <boost/assert.hpp>
#include <locale>
#include <cstring> // std::memcpy
#include <cstddef> // std::size_t
#include <streambuf> // basic_streambuf
#include <string>
#include <boost/config.hpp>
#if defined(BOOST_NO_STDC_NAMESPACE)
namespace std{
using ::memcpy;
using ::size_t;
} // namespace std
#endif
#include <boost/cstdint.hpp>
#include <boost/scoped_ptr.hpp>
#include <boost/serialization/throw_exception.hpp>
#include <boost/integer.hpp>
#include <boost/integer_traits.hpp>
#include <boost/archive/basic_streambuf_locale_saver.hpp>
#include <boost/archive/archive_exception.hpp>
#include <boost/mpl/placeholders.hpp>
#include <boost/serialization/is_bitwise_serializable.hpp>
#include <boost/serialization/array.hpp>
#include <boost/archive/detail/auto_link_archive.hpp>
#include <boost/archive/detail/abi_prefix.hpp> // must be the last header
namespace boost {
namespace archive {
/////////////////////////////////////////////////////////////////////////////
// class binary_iarchive - read serialized objects from a input binary stream
template<class Archive, class Elem, class Tr>
class basic_binary_iprimitive
{
#ifndef BOOST_NO_MEMBER_TEMPLATE_FRIENDS
friend class load_access;
protected:
#else
public:
#endif
std::basic_streambuf<Elem, Tr> & m_sb;
// return a pointer to the most derived class
Archive * This(){
return static_cast<Archive *>(this);
}
#ifndef BOOST_NO_STD_LOCALE
boost::scoped_ptr<std::locale> archive_locale;
basic_streambuf_locale_saver<Elem, Tr> locale_saver;
#endif
// main template for serilization of primitive types
template<class T>
void load(T & t){
load_binary(& t, sizeof(T));
}
/////////////////////////////////////////////////////////
// fundamental types that need special treatment
// trap usage of invalid uninitialized boolean
void load(bool & t){
load_binary(& t, sizeof(t));
int i = t;
BOOST_ASSERT(0 == i || 1 == i);
(void)i; // warning suppression for release builds.
}
BOOST_ARCHIVE_OR_WARCHIVE_DECL(void)
load(std::string &s);
#ifndef BOOST_NO_STD_WSTRING
BOOST_ARCHIVE_OR_WARCHIVE_DECL(void)
load(std::wstring &ws);
#endif
BOOST_ARCHIVE_OR_WARCHIVE_DECL(void)
load(char * t);
BOOST_ARCHIVE_OR_WARCHIVE_DECL(void)
load(wchar_t * t);
BOOST_ARCHIVE_OR_WARCHIVE_DECL(void)
init();
BOOST_ARCHIVE_OR_WARCHIVE_DECL(BOOST_PP_EMPTY())
basic_binary_iprimitive(
std::basic_streambuf<Elem, Tr> & sb,
bool no_codecvt
);
BOOST_ARCHIVE_OR_WARCHIVE_DECL(BOOST_PP_EMPTY())
~basic_binary_iprimitive();
public:
// we provide an optimized load for all fundamental types
// typedef serialization::is_bitwise_serializable<mpl::_1>
// use_array_optimization;
struct use_array_optimization {
template <class T>
#if defined(BOOST_NO_DEPENDENT_NESTED_DERIVATIONS)
struct apply {
typedef BOOST_DEDUCED_TYPENAME boost::serialization::is_bitwise_serializable< T >::type type;
};
#else
struct apply : public boost::serialization::is_bitwise_serializable< T > {};
#endif
};
// the optimized load_array dispatches to load_binary
template <class ValueType>
void load_array(serialization::array<ValueType>& a, unsigned int)
{
load_binary(a.address(),a.count()*sizeof(ValueType));
}
void
load_binary(void *address, std::size_t count);
};
template<class Archive, class Elem, class Tr>
inline void
basic_binary_iprimitive<Archive, Elem, Tr>::load_binary(
void *address,
std::size_t count
){
// note: an optimizer should eliminate the following for char files
BOOST_ASSERT(
static_cast<std::streamsize>(count / sizeof(Elem))
<= boost::integer_traits<std::streamsize>::const_max
);
std::streamsize s = static_cast<std::streamsize>(count / sizeof(Elem));
std::streamsize scount = m_sb.sgetn(
static_cast<Elem *>(address),
s
);
if(scount != s)
boost::serialization::throw_exception(
archive_exception(archive_exception::input_stream_error)
);
// note: an optimizer should eliminate the following for char files
BOOST_ASSERT(count % sizeof(Elem) <= boost::integer_traits<std::streamsize>::const_max);
s = static_cast<std::streamsize>(count % sizeof(Elem));
if(0 < s){
// if(is.fail())
// boost::serialization::throw_exception(
// archive_exception(archive_exception::stream_error)
// );
Elem t;
scount = m_sb.sgetn(& t, 1);
if(scount != 1)
boost::serialization::throw_exception(
archive_exception(archive_exception::input_stream_error)
);
std::memcpy(static_cast<char*>(address) + (count - s), &t, s);
}
}
} // namespace archive
} // namespace boost
#include <boost/archive/detail/abi_suffix.hpp> // pop pragmas
#endif // BOOST_ARCHIVE_BINARY_IPRIMITIVE_HPP
Submit an article or tip