[857] | 1 |
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| 2 | #ifndef BOOST_MPL_AUX_YES_NO_HPP_INCLUDED
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| 3 | #define BOOST_MPL_AUX_YES_NO_HPP_INCLUDED
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| 4 |
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| 5 | // Copyright Aleksey Gurtovoy 2000-2004
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| 6 | //
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| 7 | // Distributed under the Boost Software License, Version 1.0.
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| 8 | // (See accompanying file LICENSE_1_0.txt or copy at
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| 9 | // http://www.boost.org/LICENSE_1_0.txt)
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| 10 | //
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| 11 | // See http://www.boost.org/libs/mpl for documentation.
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| 12 |
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| 13 | // $Source: /cvsroot/boost/boost/boost/mpl/aux_/yes_no.hpp,v $
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| 14 | // $Date: 2004/09/28 13:56:59 $
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| 15 | // $Revision: 1.7 $
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| 16 |
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| 17 | #include <boost/mpl/aux_/nttp_decl.hpp>
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| 18 | #include <boost/mpl/aux_/config/arrays.hpp>
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| 19 | #include <boost/mpl/aux_/config/msvc.hpp>
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| 20 | #include <boost/mpl/aux_/config/workaround.hpp>
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| 21 |
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| 22 |
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| 23 | namespace boost { namespace mpl { namespace aux {
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| 24 |
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| 25 | typedef char (&no_tag)[1];
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| 26 | typedef char (&yes_tag)[2];
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| 27 |
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| 28 | template< bool C_ > struct yes_no_tag
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| 29 | {
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| 30 | typedef no_tag type;
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| 31 | };
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| 32 |
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| 33 | template<> struct yes_no_tag<true>
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| 34 | {
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| 35 | typedef yes_tag type;
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| 36 | };
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| 37 |
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| 38 |
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| 39 | template< BOOST_MPL_AUX_NTTP_DECL(long, n) > struct weighted_tag
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| 40 | {
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| 41 | #if !BOOST_WORKAROUND(BOOST_MSVC, == 1200)
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| 42 | typedef char (&type)[n];
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| 43 | #else
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| 44 | char buf[n];
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| 45 | typedef weighted_tag type;
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| 46 | #endif
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| 47 | };
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| 48 |
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| 49 | #if defined(BOOST_MPL_CFG_NO_DEPENDENT_ARRAY_TYPES)
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| 50 | template<> struct weighted_tag<0>
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| 51 | {
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| 52 | typedef char (&type)[1];
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| 53 | };
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| 54 | #endif
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| 55 |
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| 56 | }}}
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| 57 |
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| 58 | #endif // BOOST_MPL_AUX_YES_NO_HPP_INCLUDED
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