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62 lines
1.2 KiB
62 lines
1.2 KiB
#ifndef BOOST_BIND_ARG_HPP_INCLUDED |
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#define BOOST_BIND_ARG_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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// |
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// bind/arg.hpp |
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// |
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// Copyright (c) 2002 Peter Dimov and Multi Media Ltd. |
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// |
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// Distributed under the Boost Software License, Version 1.0. (See |
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// 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/bind/bind.html for documentation. |
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// |
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#include <boost/config.hpp> |
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#include <boost/is_placeholder.hpp> |
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namespace boost |
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{ |
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template< int I > struct arg |
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{ |
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arg() |
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{ |
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} |
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template< class T > arg( T const & /* t */ ) |
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{ |
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// static assert I == is_placeholder<T>::value |
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typedef char T_must_be_placeholder[ I == is_placeholder<T>::value? 1: -1 ]; |
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} |
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}; |
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template< int I > bool operator==( arg<I> const &, arg<I> const & ) |
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{ |
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return true; |
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} |
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#if !defined( BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION ) |
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template< int I > struct is_placeholder< arg<I> > |
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{ |
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enum _vt { value = I }; |
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}; |
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template< int I > struct is_placeholder< arg<I> (*) () > |
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{ |
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enum _vt { value = I }; |
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}; |
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#endif |
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} // namespace boost |
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#endif // #ifndef BOOST_BIND_ARG_HPP_INCLUDED
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