70 lines
1.4 KiB
C++
70 lines
1.4 KiB
C++
|
#ifndef BOOST_BIND_ARG_HPP_INCLUDED
|
||
|
|
#define BOOST_BIND_ARG_HPP_INCLUDED
|
||
|
|
|
||
|
|
// MS compatible compilers support #pragma once
|
||
|
|
|
||
|
|
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
|
||
|
|
# pragma once
|
||
|
|
#endif
|
||
|
|
|
||
|
|
//
|
||
|
|
// bind/arg.hpp
|
||
|
|
//
|
||
|
|
// Copyright (c) 2002 Peter Dimov and Multi Media Ltd.
|
||
|
|
//
|
||
|
|
// Distributed under the Boost Software License, Version 1.0. (See
|
||
|
|
// accompanying file LICENSE_1_0.txt or copy at
|
||
|
|
// http://www.boost.org/LICENSE_1_0.txt)
|
||
|
|
//
|
||
|
|
// See http://www.boost.org/libs/bind/bind.html for documentation.
|
||
|
|
//
|
||
|
|
|
||
|
|
#include <boost/config.hpp>
|
||
|
|
#include <boost/is_placeholder.hpp>
|
||
|
|
|
||
|
|
namespace boost
|
||
|
|
{
|
||
|
|
|
||
|
|
template<bool Eq> struct _arg_eq
|
||
|
|
{
|
||
|
|
};
|
||
|
|
|
||
|
|
template<> struct _arg_eq<true>
|
||
|
|
{
|
||
|
|
typedef void type;
|
||
|
|
};
|
||
|
|
|
||
|
|
template< int I > struct arg
|
||
|
|
{
|
||
|
|
BOOST_CONSTEXPR arg()
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
template< class T > BOOST_CONSTEXPR arg( T const & /* t */, typename _arg_eq< I == is_placeholder<T>::value >::type * = 0 )
|
||
|
|
{
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
template< int I > BOOST_CONSTEXPR bool operator==( arg<I> const &, arg<I> const & )
|
||
|
|
{
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
#if !defined( BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION )
|
||
|
|
|
||
|
|
template< int I > struct is_placeholder< arg<I> >
|
||
|
|
{
|
||
|
|
enum _vt { value = I };
|
||
|
|
};
|
||
|
|
|
||
|
|
template< int I > struct is_placeholder< arg<I> (*) () >
|
||
|
|
{
|
||
|
|
enum _vt { value = I };
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|
||
|
|
} // namespace boost
|
||
|
|
|
||
|
|
#endif // #ifndef BOOST_BIND_ARG_HPP_INCLUDED
|