Edit: /usr/include/boost/mpl/is_placeholder.hpp (1483B)
#ifndef BOOST_MPL_IS_PLACEHOLDER_HPP_INCLUDED
#define BOOST_MPL_IS_PLACEHOLDER_HPP_INCLUDED
// Copyright Aleksey Gurtovoy 2001-2004
//
// 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/mpl for documentation.
// $Id$
// $Date$
// $Revision$
#include
#include
#include
#include
#include
#include
#include
namespace boost { namespace mpl {
#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
template< typename T >
struct is_placeholder
: bool_
{
};
template< BOOST_MPL_AUX_NTTP_DECL(int, N) >
struct is_placeholder< arg >
: bool_
{
};
#else
namespace aux {
aux::no_tag is_placeholder_helper(...);
template< BOOST_MPL_AUX_NTTP_DECL(int, N) >
aux::yes_tag is_placeholder_helper(aux::type_wrapper< arg >*);
} // namespace aux
template< typename T >
struct is_placeholder
{
static aux::type_wrapper* get();
BOOST_STATIC_CONSTANT(bool, value =
sizeof(aux::is_placeholder_helper(get())) == sizeof(aux::yes_tag)
);
typedef bool_ type;
};
#endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
}}
#endif // BOOST_MPL_IS_PLACEHOLDER_HPP_INCLUDED