42 lines
1.5 KiB
Plaintext
42 lines
1.5 KiB
Plaintext
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// (C) Copyright Dave Abrahams, Steve Cleary, Beman Dawes,
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// Howard Hinnant and John Maddock 2000.
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// (C) Copyright Mat Marcus, Jesse Jones and Adobe Systems Inc 2001
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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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// Fixed is_pointer, is_reference, is_const, is_volatile, is_same,
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// is_member_pointer based on the Simulated Partial Specialization work
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// of Mat Marcus and Jesse Jones. See http://opensource.adobe.com or
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// http://groups.yahoo.com/group/boost/message/5441
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// Some workarounds in here use ideas suggested from "Generic<Programming>:
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// Mappings between Types and Values"
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// by Andrei Alexandrescu (see http://www.cuj.com/experts/1810/alexandr.html).
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#ifndef BOOST_TT_IS_SAME_HPP_INCLUDED
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#define BOOST_TT_IS_SAME_HPP_INCLUDED
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#include <boost/type_traits/integral_constant.hpp>
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namespace boost {
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template <class T, class U> struct is_same : public false_type {};
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template <class T> struct is_same<T,T> : public true_type {};
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#if BOOST_WORKAROUND(__BORLANDC__, < 0x600)
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// without this, Borland's compiler gives the wrong answer for
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// references to arrays:
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template <class T> struct is_same<T&, T&> : public true_type{};
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#endif
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} // namespace boost
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#endif // BOOST_TT_IS_SAME_HPP_INCLUDED
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