1 #ifndef BOOST_BIND_ARG_HPP_INCLUDED
2 #define BOOST_BIND_ARG_HPP_INCLUDED
4 // MS compatible compilers support #pragma once
6 #if defined(_MSC_VER) && (_MSC_VER >= 1020)
13 // Copyright (c) 2002 Peter Dimov and Multi Media Ltd.
15 // Distributed under the Boost Software License, Version 1.0. (See
16 // accompanying file LICENSE_1_0.txt or copy at
17 // http://www.boost.org/LICENSE_1_0.txt)
19 // See http://www.boost.org/libs/bind/bind.html for documentation.
22 #include <boost/config.hpp>
23 #include <boost/is_placeholder.hpp>
28 template<bool Eq> struct _arg_eq
32 template<> struct _arg_eq<true>
37 template< int I > struct arg
43 template< class T > BOOST_CONSTEXPR arg( T const & /* t */, typename _arg_eq< I == is_placeholder<T>::value >::type * = 0 )
48 template< int I > BOOST_CONSTEXPR bool operator==( arg<I> const &, arg<I> const & )
53 #if !defined( BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION )
55 template< int I > struct is_placeholder< arg<I> >
57 enum _vt { value = I };
60 template< int I > struct is_placeholder< arg<I> (*) () >
62 enum _vt { value = I };
69 #endif // #ifndef BOOST_BIND_ARG_HPP_INCLUDED