57 lines
1.9 KiB
Plaintext
57 lines
1.9 KiB
Plaintext
|
|
||
|
|
#ifndef BOOST_MPL_AUX_PREPROCESSOR_TOKEN_EQUAL_HPP_INCLUDED
|
||
|
|
#define BOOST_MPL_AUX_PREPROCESSOR_TOKEN_EQUAL_HPP_INCLUDED
|
||
|
|
|
||
|
|
// Copyright Paul Mensonides 2003
|
||
|
|
// Copyright Aleksey Gurtovoy 2003-2004
|
||
|
|
//
|
||
|
|
// Distributed under 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/libs/mpl for documentation.
|
||
|
|
|
||
|
|
// $Id$
|
||
|
|
// $Date$
|
||
|
|
// $Revision$
|
||
|
|
|
||
|
|
#include <boost/mpl/aux_/preprocessor/is_seq.hpp>
|
||
|
|
|
||
|
|
#include <boost/preprocessor/if.hpp>
|
||
|
|
#include <boost/preprocessor/logical/bitand.hpp>
|
||
|
|
#include <boost/preprocessor/logical/compl.hpp>
|
||
|
|
#include <boost/preprocessor/tuple/eat.hpp>
|
||
|
|
#include <boost/preprocessor/cat.hpp>
|
||
|
|
|
||
|
|
// compares tokens 'a' and 'b' for equality:
|
||
|
|
//
|
||
|
|
// #define BOOST_MPL_PP_TOKEN_EQUAL_apple(x) x
|
||
|
|
// #define BOOST_MPL_PP_TOKEN_EQUAL_orange(x) x
|
||
|
|
//
|
||
|
|
// BOOST_PP_ASSERT( BOOST_PP_NOT( BOOST_MPL_PP_TOKEN_EQUAL(apple, abc) ) )
|
||
|
|
// BOOST_PP_ASSERT( BOOST_PP_NOT( BOOST_MPL_PP_TOKEN_EQUAL(abc, apple) ) )
|
||
|
|
// BOOST_PP_ASSERT( BOOST_PP_NOT( BOOST_MPL_PP_TOKEN_EQUAL(apple, orange) ) )
|
||
|
|
// BOOST_PP_ASSERT( BOOST_MPL_PP_TOKEN_EQUAL(apple, apple) )
|
||
|
|
// BOOST_PP_ASSERT( BOOST_MPL_PP_TOKEN_EQUAL(orange, orange) )
|
||
|
|
|
||
|
|
#define BOOST_MPL_PP_TOKEN_EQUAL(a, b) \
|
||
|
|
BOOST_PP_IIF( \
|
||
|
|
BOOST_PP_BITAND( \
|
||
|
|
BOOST_MPL_PP_IS_SEQ( BOOST_PP_CAT(BOOST_MPL_PP_TOKEN_EQUAL_, a)((unused)) ) \
|
||
|
|
, BOOST_MPL_PP_IS_SEQ( BOOST_PP_CAT(BOOST_MPL_PP_TOKEN_EQUAL_, b)((unused)) ) \
|
||
|
|
) \
|
||
|
|
, BOOST_MPL_PP_TOKEN_EQUAL_I \
|
||
|
|
, 0 BOOST_PP_TUPLE_EAT(2) \
|
||
|
|
)(a, b) \
|
||
|
|
/**/
|
||
|
|
|
||
|
|
#define BOOST_MPL_PP_TOKEN_EQUAL_I(a, b) \
|
||
|
|
BOOST_PP_COMPL(BOOST_MPL_PP_IS_SEQ( \
|
||
|
|
BOOST_MPL_PP_TOKEN_EQUAL_ ## a( \
|
||
|
|
BOOST_MPL_PP_TOKEN_EQUAL_ ## b \
|
||
|
|
)((unused)) \
|
||
|
|
)) \
|
||
|
|
/**/
|
||
|
|
|
||
|
|
#endif // BOOST_MPL_AUX_PREPROCESSOR_TOKEN_EQUAL_HPP_INCLUDED
|