44 lines
1.4 KiB
Plaintext
44 lines
1.4 KiB
Plaintext
// (C) Copyright John Maddock & Thorsten Ottosen 2005.
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// Use, modification and distribution are subject to the Boost Software License,
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// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt).
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//
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// See http://www.boost.org/libs/type_traits for most recent version including documentation.
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#ifndef BOOST_TT_DECAY_HPP_INCLUDED
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#define BOOST_TT_DECAY_HPP_INCLUDED
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#include <boost/type_traits/is_array.hpp>
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#include <boost/type_traits/is_function.hpp>
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#include <boost/type_traits/remove_bounds.hpp>
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#include <boost/type_traits/add_pointer.hpp>
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#include <boost/type_traits/remove_reference.hpp>
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#include <boost/type_traits/remove_cv.hpp>
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namespace boost
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{
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namespace detail
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{
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template <class T, bool Array, bool Function> struct decay_imp { typedef typename remove_cv<T>::type type; };
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template <class T> struct decay_imp<T, true, false> { typedef typename remove_bounds<T>::type* type; };
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template <class T> struct decay_imp<T, false, true> { typedef T* type; };
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}
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template< class T >
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struct decay
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{
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private:
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typedef typename remove_reference<T>::type Ty;
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public:
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typedef typename boost::detail::decay_imp<Ty, boost::is_array<Ty>::value, boost::is_function<Ty>::value>::type type;
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};
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} // namespace boost
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#endif // BOOST_TT_DECAY_HPP_INCLUDED
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