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31 lines
665 B
C++
31 lines
665 B
C++
#ifndef BOOST_IS_PLACEHOLDER_HPP_INCLUDED
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#define BOOST_IS_PLACEHOLDER_HPP_INCLUDED
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// MS compatible compilers support #pragma once
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#if defined( _MSC_VER ) && ( _MSC_VER >= 1020 )
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# pragma once
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#endif
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// is_placeholder.hpp - TR1 is_placeholder metafunction
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//
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// Copyright (c) 2006 Peter Dimov
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//
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// Distributed under the Boost Software License, Version 1.0.
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//
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// 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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namespace boost
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{
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template< class T > struct is_placeholder
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{
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enum _vt { value = 0 };
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};
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} // namespace boost
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#endif // #ifndef BOOST_IS_PLACEHOLDER_HPP_INCLUDED
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