templ_meta.h

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/*
*
* templog library
*
* Copyright Hendrik Schober
* 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://templog.sourceforge.net/ for more info
*
*/

#if !defined(TEMPLOG_TEMPL_META_H)
#define TEMPLOG_TEMPL_META_H

/******************************************************************************/
#include "config.h"

/******************************************************************************/

namespace templog {

    namespace templ_meta {

        struct nil {};

        template< bool B_ >
        struct boolean {
            typedef boolean<B_>                             result_type; 
            enum { result = B_ };
        };

        template< int I_ >
        struct int2type { enum { result = I_ }; };

        template< class Bool_, typename T1_, typename T2_ > struct if_;
        template<              typename T1_, typename T2_ > struct if_<boolean<true >,T1_,T2_> {typedef T1_ result_type;};
        template<              typename T1_, typename T2_ > struct if_<boolean<false>,T1_,T2_> {typedef T2_ result_type;};

    }

}

/******************************************************************************/

#endif //defined(TEMPLOG_TEMPL_META_H)

/******************************************************************************/
/* EOF */

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