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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: is_seq.hpp 49267 2008-10-11 06:19:02Z agurtovoy $ |
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15 | // $Date: 2008-10-11 02:19:02 -0400 (Sat, 11 Oct 2008) $ |
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16 | // $Revision: 49267 $ |
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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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