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| 2 | #ifndef BOOST_MPL_AUX_PREPROCESSOR_IS_SEQ_HPP_INCLUDED |
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| 3 | #define BOOST_MPL_AUX_PREPROCESSOR_IS_SEQ_HPP_INCLUDED |
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| 4 | |
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| 5 | // Copyright Paul Mensonides 2003 |
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| 6 | // Copyright Aleksey Gurtovoy 2003-2004 |
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| 7 | // |
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| 8 | // Distributed under the Boost Software License, Version 1.0. |
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| 9 | // (See accompanying file LICENSE_1_0.txt or copy at |
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| 10 | // http://www.boost.org/LICENSE_1_0.txt) |
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| 11 | // |
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| 12 | // See http://www.boost.org/libs/mpl for documentation. |
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| 13 | |
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| 14 | // $Id$ |
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| 15 | // $Date$ |
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| 16 | // $Revision$ |
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| 17 | |
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| 18 | #include <boost/preprocessor/seq/size.hpp> |
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| 19 | #include <boost/preprocessor/arithmetic/dec.hpp> |
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| 20 | #include <boost/preprocessor/punctuation/paren.hpp> |
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| 21 | #include <boost/preprocessor/cat.hpp> |
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| 22 | #include <boost/preprocessor/config/config.hpp> |
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| 23 | |
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| 24 | // returns 1 if 'seq' is a PP-sequence, 0 otherwise: |
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| 25 | // |
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| 26 | // BOOST_PP_ASSERT( BOOST_PP_NOT( BOOST_MPL_PP_IS_SEQ( int ) ) ) |
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| 27 | // BOOST_PP_ASSERT( BOOST_MPL_PP_IS_SEQ( (int) ) ) |
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| 28 | // BOOST_PP_ASSERT( BOOST_MPL_PP_IS_SEQ( (1)(2) ) ) |
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| 29 | |
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| 30 | #if (BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_BCC()) || defined(_MSC_VER) && defined(__INTEL_COMPILER) && __INTEL_COMPILER == 1010 |
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| 31 | |
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| 32 | # define BOOST_MPL_PP_IS_SEQ(seq) BOOST_PP_DEC( BOOST_PP_SEQ_SIZE( BOOST_MPL_PP_IS_SEQ_(seq) ) ) |
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| 33 | # define BOOST_MPL_PP_IS_SEQ_(seq) BOOST_MPL_PP_IS_SEQ_SEQ_( BOOST_MPL_PP_IS_SEQ_SPLIT_ seq ) |
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| 34 | # define BOOST_MPL_PP_IS_SEQ_SEQ_(x) (x) |
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| 35 | # define BOOST_MPL_PP_IS_SEQ_SPLIT_(unused) unused)((unused) |
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| 36 | |
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| 37 | #else |
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| 38 | |
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| 39 | # if BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MWCC() |
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| 40 | # define BOOST_MPL_PP_IS_SEQ(seq) BOOST_MPL_PP_IS_SEQ_MWCC_((seq)) |
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| 41 | # define BOOST_MPL_PP_IS_SEQ_MWCC_(args) BOOST_MPL_PP_IS_SEQ_ ## args |
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| 42 | # else |
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| 43 | # define BOOST_MPL_PP_IS_SEQ(seq) BOOST_MPL_PP_IS_SEQ_(seq) |
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| 44 | # endif |
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| 45 | |
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| 46 | # 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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| 47 | # define BOOST_MPL_PP_IS_SEQ_0(x) BOOST_MPL_PP_IS_SEQ_1(x |
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| 48 | # define BOOST_MPL_PP_IS_SEQ_ALWAYS_0(unused) 0 |
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| 49 | # define BOOST_MPL_PP_IS_SEQ_BOOST_MPL_PP_IS_SEQ_0 BOOST_MPL_PP_IS_SEQ_ALWAYS_0( |
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| 50 | # define BOOST_MPL_PP_IS_SEQ_BOOST_MPL_PP_IS_SEQ_1(unused) 1 |
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| 51 | |
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| 52 | #endif |
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| 53 | |
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| 54 | #endif // BOOST_MPL_AUX_PREPROCESSOR_IS_SEQ_HPP_INCLUDED |
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| 55 | |
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