boost/archive/basic_binary_oprimitive.hpp
#ifndef BOOST_ARCHIVE_BASIC_BINARY_OPRIMITIVE_HPP
#define BOOST_ARCHIVE_BASIC_BINARY_OPRIMITIVE_HPP
// MS compatible compilers support #pragma once
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
# pragma once
#endif
/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
// basic_binary_oprimitive.hpp
// (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.
// 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 CREATE ON
#include <iosfwd>
#include <cassert>
#include <locale>
#include <cstddef> // size_t
#include <boost/config.hpp>
#if defined(BOOST_NO_STDC_NAMESPACE)
namespace std{
using ::size_t;
} // namespace std
#endif
#include <boost/cstdint.hpp>
#include <boost/limits.hpp>
#include <boost/io/ios_state.hpp>
#include <boost/scoped_ptr.hpp>
#include <boost/throw_exception.hpp>
#include <boost/archive/archive_exception.hpp>
namespace boost {
namespace archive {
/////////////////////////////////////////////////////////////////////////
// class basic_binary_oprimitive - binary output of prmitives
template<class Archive, class OStream>
class basic_binary_oprimitive
{
#ifndef BOOST_NO_MEMBER_TEMPLATE_FRIENDS
friend class save_access;
protected:
#else
public:
#endif
// return a pointer to the most derived class
Archive * This(){
return static_cast<Archive *>(this);
}
// native binary streams are handled as bytes
OStream &os;
boost::scoped_ptr<std::locale> archive_locale;
io::basic_ios_locale_saver<
BOOST_DEDUCED_TYPENAME OStream::char_type,
BOOST_DEDUCED_TYPENAME OStream::traits_type
> locale_saver;
// default saving of primitives.
template<class T>
void save(const T & t)
{
save_binary(& t, sizeof(T));
}
void save(const char * t);
void save(const wchar_t * t);
void save(const std::string &s);
#ifndef BOOST_NO_STD_WSTRING
void save(const std::wstring &ws);
#endif
void init();
basic_binary_oprimitive(OStream & os, bool no_codecvt);
~basic_binary_oprimitive();
public:
void save_binary(const void *address, std::size_t count);
};
template<class Archive, class OStream>
inline void basic_binary_oprimitive<Archive, OStream>::save_binary(
const void *address,
std::size_t count
){
assert(
static_cast<std::size_t>(std::numeric_limits<std::streamsize>::max()) >= count
);
// note: if the following assertions fail
// a likely cause is that the output stream is set to "text"
// mode where by cr characters recieve special treatment.
// be sure that the output stream is opened with ios::binary
if(os.fail())
boost::throw_exception(archive_exception(archive_exception::stream_error));
// figure number of elements to output - round up
count = ( count + sizeof(BOOST_DEDUCED_TYPENAME OStream::char_type) - 1)
/ sizeof(BOOST_DEDUCED_TYPENAME OStream::char_type);
os.write(
static_cast<const BOOST_DEDUCED_TYPENAME OStream::char_type *>(address),
count
);
assert(os.good());
}
} //namespace boost
} //namespace archive
#endif // BOOST_ARCHIVE_BASIC_BINARY_OPRIMITIVE_HPP