1
2#ifndef BOOST_MPL_BOOL_HPP_INCLUDED
3#define BOOST_MPL_BOOL_HPP_INCLUDED
4
5// Copyright Aleksey Gurtovoy 2000-2004
6//
7// Distributed under the Boost Software License, Version 1.0.
8// (See accompanying file LICENSE_1_0.txt or copy at
9// http://www.boost.org/LICENSE_1_0.txt)
10//
11// See http://www.boost.org/libs/mpl for documentation.
12
13// $Id$
14// $Date$
15// $Revision$
16
17#include <boost/mpl/bool_fwd.hpp>
18#include <boost/mpl/integral_c_tag.hpp>
19#include <boost/mpl/aux_/config/static_constant.hpp>
20
21BOOST_MPL_AUX_ADL_BARRIER_NAMESPACE_OPEN
22
23template< bool C_ > struct bool_
24{
25 BOOST_STATIC_CONSTANT(bool, value = C_);
26 typedef integral_c_tag tag;
27 typedef bool_ type;
28 typedef bool value_type;
29 BOOST_CONSTEXPR operator bool() const { return this->value; }
30};
31
32#if !defined(BOOST_NO_INCLASS_MEMBER_INITIALIZATION)
33template< bool C_ >
34bool const bool_<C_>::value;
35#endif
36
37BOOST_MPL_AUX_ADL_BARRIER_NAMESPACE_CLOSE
38
39#endif // BOOST_MPL_BOOL_HPP_INCLUDED
40

source code of boost/boost/mpl/bool.hpp