IoBind, a serializer code factory.

// iobind library
//
// author: Jonathan de Halleux, 2003

#ifndef IOBIND_CRC_POLICY_HPP
#define IOBIND_CRC_POLICY_HPP

#include <boost/crc.hpp>
#include <iobind/policy.hpp>

namespace iobind{
namespace detail{

template < 
	typename CRCComputer
>
struct crc_policy
{
	typedef typename CRCComputer::value_type return_type;

	template<
		typename Container
	>
	return_type encode(Container const& cont_) const
	{	
		CRCComputer crc;
		crc.process_bytes(
			cont_.data(), 
			cont_.size() * sizeof( Container::value_type )
			);

		return crc.checksum();
	};

	template<typename Iterator>
	return_type encode(Iterator const& begin_, Iterator const& end_) const
	{
		CRCComputer crc;
		crc.process_block(
			begin_, 
			end_
			);

		return crc.checksum();
	};

	// factories

};

}; // detail


template < 
	typename CRCComputer
>
struct to_crc : 
	detail::policy_cons< 
		detail::crc_policy<CRCComputer>,
		detail::identity_policy 
	>
{
	typedef detail::crc_policy<CRCComputer> type;
};

typedef to_crc<boost::crc_16_type> to_crc_16;
typedef to_crc<boost::crc_ccitt_type> to_crc_ccitt;
typedef to_crc<boost::crc_xmodem_type> to_crc_xmodem;
typedef to_crc<boost::crc_32_type> to_crc_32;

}; // iobind

#endif