| Server IP : 194.181.228.65 / Your IP : 216.73.216.87 Web Server : LiteSpeed System : Linux wn13.webd.pl 5.14.0-687.46.1.el9_8.x86_64 #1 SMP PREEMPT_DYNAMIC Fri Sep 11 09:03:19 EDT 2026 x86_64 User : prusit ( 133039) PHP Version : 5.6.40 Disable Function : exec, system, shell_exec, passthru, proc_open, proc_close, popen MySQL : ON | cURL : ON | WGET : ON | Perl : ON | Python : OFF | Sudo : ON | Pkexec : ON Directory : /usr/include/boost/mpl/ |
Upload File : |
#ifndef BOOST_MPL_EMPTY_BASE_HPP_INCLUDED
#define BOOST_MPL_EMPTY_BASE_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 <boost/mpl/bool.hpp>
#include <boost/mpl/aux_/config/msvc.hpp>
#include <boost/mpl/aux_/config/workaround.hpp>
#include <boost/mpl/aux_/lambda_support.hpp>
#include <boost/type_traits/integral_constant.hpp>
#include <boost/type_traits/is_empty.hpp>
namespace boost { namespace mpl {
// empty base class, guaranteed to have no members; inheritance from
// 'empty_base' through the 'inherit' metafunction is a no-op - see
// "mpl/inherit.hpp> header for the details
struct empty_base {};
template< typename T >
struct is_empty_base
: false_
{
#if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
using false_::value;
#endif
};
template<>
struct is_empty_base<empty_base>
: true_
{
#if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
using true_::value;
#endif
};
}}
namespace boost {
template<> struct is_empty< mpl::empty_base >
: public ::boost::integral_constant<bool,true>
{
public:
BOOST_MPL_AUX_LAMBDA_SUPPORT_SPEC(1,is_empty,(mpl::empty_base))
};
}
#endif // BOOST_MPL_EMPTY_BASE_HPP_INCLUDED