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boost/boost/type_traits/is_union.hpp

 

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// (C) Copyright Dave Abrahams, Steve Cleary, Beman Dawes, Howard

 

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// Hinnant & John Maddock 2000.  Permission to copy, use, modify,

 

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// sell and distribute this software is granted provided this

 

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// copyright notice appears in all copies. This software is provided

 

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// "as is" without express or implied warranty, and with no claim as

 

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// to its suitability for any purpose.

 

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//

 

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// See http://www.boost.org for most recent version including documentation.

 

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#ifndef BOOST_TT_IS_UNION_HPP_INCLUDED

 

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#define BOOST_TT_IS_UNION_HPP_INCLUDED

 

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#include "boost/type_traits/remove_cv.hpp"

 

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#include "boost/type_traits/config.hpp"

 

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#include "boost/type_traits/intrinsics.hpp"

 

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// should be the last #include

 

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#include "boost/type_traits/detail/bool_trait_def.hpp"

 

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namespace boost {

 

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namespace detail {

 

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template <typename T> struct is_union_impl

 

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{

 

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   typedef typename remove_cv<T>::type cvt;

 

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   BOOST_STATIC_CONSTANT(bool, value = BOOST_IS_UNION(cvt));

 

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};

 

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} // namespace detail

 

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BOOST_TT_AUX_BOOL_TRAIT_DEF1(is_union,T,::boost::detail::is_union_impl<T>::value)

 

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} // namespace boost

 

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#include "boost/type_traits/detail/bool_trait_undef.hpp"

 

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#endif // BOOST_TT_IS_UNION_HPP_INCLUDED

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