ext-boost/boost/mpl/aux_/preprocessor/is_seq.hpp

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#ifndef BOOST_MPL_AUX_PREPROCESSOR_IS_SEQ_HPP_INCLUDED
#define BOOST_MPL_AUX_PREPROCESSOR_IS_SEQ_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/preprocessor/seq/size.hpp>
#include <boost/preprocessor/arithmetic/dec.hpp>
#include <boost/preprocessor/punctuation/paren.hpp>
#include <boost/preprocessor/cat.hpp>
#include <boost/preprocessor/config/config.hpp>
// returns 1 if 'seq' is a PP-sequence, 0 otherwise:
//
// BOOST_PP_ASSERT( BOOST_PP_NOT( BOOST_MPL_PP_IS_SEQ( int ) ) )
// BOOST_PP_ASSERT( BOOST_MPL_PP_IS_SEQ( (int) ) )
// BOOST_PP_ASSERT( BOOST_MPL_PP_IS_SEQ( (1)(2) ) )
#if (BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_BCC()) || defined(_MSC_VER) && defined(__INTEL_COMPILER) && __INTEL_COMPILER == 1010
# define BOOST_MPL_PP_IS_SEQ(seq) BOOST_PP_DEC( BOOST_PP_SEQ_SIZE( BOOST_MPL_PP_IS_SEQ_(seq) ) )
# define BOOST_MPL_PP_IS_SEQ_(seq) BOOST_MPL_PP_IS_SEQ_SEQ_( BOOST_MPL_PP_IS_SEQ_SPLIT_ seq )
# define BOOST_MPL_PP_IS_SEQ_SEQ_(x) (x)
# define BOOST_MPL_PP_IS_SEQ_SPLIT_(unused) unused)((unused)
#else
# if BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MWCC()
# define BOOST_MPL_PP_IS_SEQ(seq) BOOST_MPL_PP_IS_SEQ_MWCC_((seq))
# define BOOST_MPL_PP_IS_SEQ_MWCC_(args) BOOST_MPL_PP_IS_SEQ_ ## args
# else
# define BOOST_MPL_PP_IS_SEQ(seq) BOOST_MPL_PP_IS_SEQ_(seq)
# endif
# define BOOST_MPL_PP_IS_SEQ_(seq) BOOST_PP_CAT(BOOST_MPL_PP_IS_SEQ_, BOOST_MPL_PP_IS_SEQ_0 seq BOOST_PP_RPAREN())
# define BOOST_MPL_PP_IS_SEQ_0(x) BOOST_MPL_PP_IS_SEQ_1(x
# define BOOST_MPL_PP_IS_SEQ_ALWAYS_0(unused) 0
# define BOOST_MPL_PP_IS_SEQ_BOOST_MPL_PP_IS_SEQ_0 BOOST_MPL_PP_IS_SEQ_ALWAYS_0(
# define BOOST_MPL_PP_IS_SEQ_BOOST_MPL_PP_IS_SEQ_1(unused) 1
#endif
#endif // BOOST_MPL_AUX_PREPROCESSOR_IS_SEQ_HPP_INCLUDED