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source: downloads/boost_1_34_1/boost/range/detail/common.hpp @ 29

Last change on this file since 29 was 29, checked in by landauf, 17 years ago
updated boost from 1_33_1 to 1_34_1
File size: 6.6 KB

Rev	Line
[29]	1	// Boost.Range library
	2	//
	3	// Copyright Thorsten Ottosen 2003-2004. Use, modification and
	4	// distribution is subject to the Boost Software License, Version
	5	// 1.0. (See accompanying file LICENSE_1_0.txt or copy at
	6	// http://www.boost.org/LICENSE_1_0.txt)
	7	//
	8	// For more information, see http://www.boost.org/libs/range/
	9	//
	10
	11	#ifndef BOOST_RANGE_DETAIL_COMMON_HPP
	12	#define BOOST_RANGE_DETAIL_COMMON_HPP
	13
	14	#if defined(_MSC_VER) && (_MSC_VER >= 1200)
	15	# pragma once
	16	#endif
	17
	18	#include <boost/range/config.hpp>
	19	#include <boost/range/detail/sfinae.hpp>
	20	#include <boost/type_traits/is_void.hpp>
	21	#include <boost/type_traits/detail/ice_or.hpp>
	22	#include <boost/mpl/if.hpp>
	23	#include <boost/mpl/int.hpp>
	24	#include <cstddef>
	25
	26	//////////////////////////////////////////////////////////////////////////////
	27	// missing partial specialization workaround.
	28	//////////////////////////////////////////////////////////////////////////////
	29
	30	namespace boost
	31	{
	32	namespace range_detail
	33	{
	34	// 1 = std containers
	35	// 2 = std::pair
	36	// 3 = const std::pair
	37	// 4 = array
	38	// 5 = const array
	39	// 6 = char array
	40	// 7 = wchar_t array
	41	// 8 = char*
	42	// 9 = const char*
	43	// 10 = whar_t*
	44	// 11 = const wchar_t*
	45	// 12 = string
	46
	47	typedef mpl::int_<1>::type std_container_;
	48	typedef mpl::int_<2>::type std_pair_;
	49	typedef mpl::int_<3>::type const_std_pair_;
	50	typedef mpl::int_<4>::type array_;
	51	typedef mpl::int_<5>::type const_array_;
	52	typedef mpl::int_<6>::type char_array_;
	53	typedef mpl::int_<7>::type wchar_t_array_;
	54	typedef mpl::int_<8>::type char_ptr_;
	55	typedef mpl::int_<9>::type const_char_ptr_;
	56	typedef mpl::int_<10>::type wchar_t_ptr_;
	57	typedef mpl::int_<11>::type const_wchar_t_ptr_;
	58	typedef mpl::int_<12>::type string_;
	59
	60	template< typename C >
	61	struct range_helper
	62	{
	63	static C* c;
	64	static C ptr;
	65
	66	BOOST_STATIC_CONSTANT( bool, is_pair_ = sizeof( boost::range_detail::is_pair_impl( c ) ) == sizeof( yes_type ) );
	67	BOOST_STATIC_CONSTANT( bool, is_char_ptr_ = sizeof( boost::range_detail::is_char_ptr_impl( ptr ) ) == sizeof( yes_type ) );
	68	BOOST_STATIC_CONSTANT( bool, is_const_char_ptr_ = sizeof( boost::range_detail::is_const_char_ptr_impl( ptr ) ) == sizeof( yes_type ) );
	69	BOOST_STATIC_CONSTANT( bool, is_wchar_t_ptr_ = sizeof( boost::range_detail::is_wchar_t_ptr_impl( ptr ) ) == sizeof( yes_type ) );
	70	BOOST_STATIC_CONSTANT( bool, is_const_wchar_t_ptr_ = sizeof( boost::range_detail::is_const_wchar_t_ptr_impl( ptr ) ) == sizeof( yes_type ) );
	71	BOOST_STATIC_CONSTANT( bool, is_char_array_ = sizeof( boost::range_detail::is_char_array_impl( ptr ) ) == sizeof( yes_type ) );
	72	BOOST_STATIC_CONSTANT( bool, is_wchar_t_array_ = sizeof( boost::range_detail::is_wchar_t_array_impl( ptr ) ) == sizeof( yes_type ) );
	73	BOOST_STATIC_CONSTANT( bool, is_string_ = (boost::type_traits::ice_or<is_const_char_ptr_, is_const_wchar_t_ptr_>::value ));
	74	BOOST_STATIC_CONSTANT( bool, is_array_ = boost::is_array<C>::value );
	75
	76	};
	77
	78	template< typename C >
	79	class range
	80	{
	81	typedef BOOST_RANGE_DEDUCED_TYPENAME boost::mpl::if_c< ::boost::range_detail::range_helper<C>::is_pair_,
	82	boost::range_detail::std_pair_,
	83	void >::type pair_t;
	84	typedef BOOST_RANGE_DEDUCED_TYPENAME boost::mpl::if_c< ::boost::range_detail::range_helper<C>::is_array_,
	85	boost::range_detail::array_,
	86	pair_t >::type array_t;
	87	typedef BOOST_RANGE_DEDUCED_TYPENAME boost::mpl::if_c< ::boost::range_detail::range_helper<C>::is_string_,
	88	boost::range_detail::string_,
	89	array_t >::type string_t;
	90	typedef BOOST_RANGE_DEDUCED_TYPENAME boost::mpl::if_c< ::boost::range_detail::range_helper<C>::is_const_char_ptr_,
	91	boost::range_detail::const_char_ptr_,
	92	string_t >::type const_char_ptr_t;
	93	typedef BOOST_RANGE_DEDUCED_TYPENAME boost::mpl::if_c< ::boost::range_detail::range_helper<C>::is_char_ptr_,
	94	boost::range_detail::char_ptr_,
	95	const_char_ptr_t >::type char_ptr_t;
	96	typedef BOOST_RANGE_DEDUCED_TYPENAME boost::mpl::if_c< ::boost::range_detail::range_helper<C>::is_const_wchar_t_ptr_,
	97	boost::range_detail::const_wchar_t_ptr_,
	98	char_ptr_t >::type const_wchar_ptr_t;
	99	typedef BOOST_RANGE_DEDUCED_TYPENAME boost::mpl::if_c< ::boost::range_detail::range_helper<C>::is_wchar_t_ptr_,
	100	boost::range_detail::wchar_t_ptr_,
	101	const_wchar_ptr_t >::type wchar_ptr_t;
	102	typedef BOOST_RANGE_DEDUCED_TYPENAME boost::mpl::if_c< ::boost::range_detail::range_helper<C>::is_wchar_t_array_,
	103	boost::range_detail::wchar_t_array_,
	104	wchar_ptr_t >::type wchar_array_t;
	105	typedef BOOST_RANGE_DEDUCED_TYPENAME boost::mpl::if_c< ::boost::range_detail::range_helper<C>::is_char_array_,
	106	boost::range_detail::char_array_,
	107	wchar_array_t >::type char_array_t;
	108	public:
	109	typedef BOOST_RANGE_DEDUCED_TYPENAME boost::mpl::if_c< ::boost::is_void<char_array_t>::value,
	110	boost::range_detail::std_container_,
	111	char_array_t >::type type;
	112	}; // class 'range'
	113	}
	114	}
	115
	116	#endif

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