Sha256: bc7de69970a4409546857a2cb661a95f62228b75cdb0d71c40a4a8e69adff718
Contents?: true
Size: 1.85 KB
Versions: 58
Compression:
Stored size: 1.85 KB
Contents
#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
Version data entries
58 entries across 58 versions & 3 rubygems