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| 2 | // (C) Copyright Steve Cleary, Beman Dawes, Howard Hinnant & John Maddock 2000. |
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| 3 | // Use, modification and distribution are subject to the Boost Software License, |
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| 4 | // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
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| 5 | // http://www.boost.org/LICENSE_1_0.txt). |
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| 6 | // |
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| 7 | // See http://www.boost.org/libs/type_traits for most recent version including documentation. |
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| 8 | |
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| 9 | #ifndef BOOST_TT_IS_VOID_HPP_INCLUDED |
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| 10 | #define BOOST_TT_IS_VOID_HPP_INCLUDED |
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| 11 | |
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| 12 | #include <boost/config.hpp> |
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| 13 | |
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| 14 | // should be the last #include |
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| 15 | #include <boost/type_traits/detail/bool_trait_def.hpp> |
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| 16 | |
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| 17 | namespace boost { |
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| 18 | |
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| 19 | //* is a type T void - is_void<T> |
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| 20 | #if defined( __CODEGEARC__ ) |
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| 21 | BOOST_TT_AUX_BOOL_TRAIT_DEF1(is_void,T,__is_void(T)) |
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| 22 | #else |
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| 23 | BOOST_TT_AUX_BOOL_TRAIT_DEF1(is_void,T,false) |
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| 24 | BOOST_TT_AUX_BOOL_TRAIT_SPEC1(is_void,void,true) |
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| 25 | |
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| 26 | #ifndef BOOST_NO_CV_VOID_SPECIALIZATIONS |
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| 27 | BOOST_TT_AUX_BOOL_TRAIT_SPEC1(is_void,void const,true) |
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| 28 | BOOST_TT_AUX_BOOL_TRAIT_SPEC1(is_void,void volatile,true) |
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| 29 | BOOST_TT_AUX_BOOL_TRAIT_SPEC1(is_void,void const volatile,true) |
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| 30 | #endif |
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| 31 | |
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| 32 | #endif // non-CodeGear implementation |
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| 33 | |
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| 34 | } // namespace boost |
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| 35 | |
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| 36 | #include <boost/type_traits/detail/bool_trait_undef.hpp> |
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| 37 | |
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| 38 | #endif // BOOST_TT_IS_VOID_HPP_INCLUDED |
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