55 lines
2.1 KiB
Plaintext
55 lines
2.1 KiB
Plaintext
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#ifndef BOOST_MPL_AUX_PREPROCESSOR_IS_SEQ_HPP_INCLUDED
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#define BOOST_MPL_AUX_PREPROCESSOR_IS_SEQ_HPP_INCLUDED
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// Copyright Paul Mensonides 2003
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// Copyright Aleksey Gurtovoy 2003-2004
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//
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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//
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// See http://www.boost.org/libs/mpl for documentation.
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// $Id$
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// $Date$
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// $Revision$
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#include <boost/preprocessor/seq/size.hpp>
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#include <boost/preprocessor/arithmetic/dec.hpp>
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#include <boost/preprocessor/punctuation/paren.hpp>
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#include <boost/preprocessor/cat.hpp>
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#include <boost/preprocessor/config/config.hpp>
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// returns 1 if 'seq' is a PP-sequence, 0 otherwise:
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//
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// BOOST_PP_ASSERT( BOOST_PP_NOT( BOOST_MPL_PP_IS_SEQ( int ) ) )
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// BOOST_PP_ASSERT( BOOST_MPL_PP_IS_SEQ( (int) ) )
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// BOOST_PP_ASSERT( BOOST_MPL_PP_IS_SEQ( (1)(2) ) )
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#if (BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_BCC()) || defined(_MSC_VER) && defined(__INTEL_COMPILER) && __INTEL_COMPILER == 1010
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# define BOOST_MPL_PP_IS_SEQ(seq) BOOST_PP_DEC( BOOST_PP_SEQ_SIZE( BOOST_MPL_PP_IS_SEQ_(seq) ) )
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# define BOOST_MPL_PP_IS_SEQ_(seq) BOOST_MPL_PP_IS_SEQ_SEQ_( BOOST_MPL_PP_IS_SEQ_SPLIT_ seq )
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# define BOOST_MPL_PP_IS_SEQ_SEQ_(x) (x)
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# define BOOST_MPL_PP_IS_SEQ_SPLIT_(unused) unused)((unused)
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#else
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# if BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MWCC()
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# define BOOST_MPL_PP_IS_SEQ(seq) BOOST_MPL_PP_IS_SEQ_MWCC_((seq))
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# define BOOST_MPL_PP_IS_SEQ_MWCC_(args) BOOST_MPL_PP_IS_SEQ_ ## args
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# else
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# define BOOST_MPL_PP_IS_SEQ(seq) BOOST_MPL_PP_IS_SEQ_(seq)
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# endif
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# 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())
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# define BOOST_MPL_PP_IS_SEQ_0(x) BOOST_MPL_PP_IS_SEQ_1(x
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# define BOOST_MPL_PP_IS_SEQ_ALWAYS_0(unused) 0
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# define BOOST_MPL_PP_IS_SEQ_BOOST_MPL_PP_IS_SEQ_0 BOOST_MPL_PP_IS_SEQ_ALWAYS_0(
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# define BOOST_MPL_PP_IS_SEQ_BOOST_MPL_PP_IS_SEQ_1(unused) 1
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#endif
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#endif // BOOST_MPL_AUX_PREPROCESSOR_IS_SEQ_HPP_INCLUDED
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