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: bool.hpp 49267 2008-10-11 06:19:02Z agurtovoy $

    14 // $Date: 2008-10-11 02:19:02 -0400 (Sat, 11 Oct 2008) $

    15 // $Revision: 49267 $

    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 

    21 BOOST_MPL_AUX_ADL_BARRIER_NAMESPACE_OPEN

    22 

    23 template< 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     operator bool() const { return this->value; }

    30 };

    31 

    32 #if !defined(BOOST_NO_INCLASS_MEMBER_INITIALIZATION)

    33 template< bool C_ >

    34 bool const bool_<C_>::value;

    35 #endif

    36 

    37 BOOST_MPL_AUX_ADL_BARRIER_NAMESPACE_CLOSE

    38 

    39 #endif // BOOST_MPL_BOOL_HPP_INCLUDED