#ifndef BOOST_MPL_AUX_LARGEST_INT_HPP_INCLUDED

 #define BOOST_MPL_AUX_LARGEST_INT_HPP_INCLUDED

 // Copyright Aleksey Gurtovoy 2000-2004

 //

 // 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.

 // $Source: /cvsroot/boost/boost/boost/mpl/aux_/largest_int.hpp,v $

 // $Date: 2004/09/19 03:08:53 $

 // $Revision: 1.5 $

 #include <boost/mpl/if.hpp>

 #include <boost/mpl/int.hpp>

 #include <boost/mpl/aux_/config/integral.hpp>

 #include <boost/config.hpp>

 namespace boost { namespace mpl { namespace aux {

 template< typename T > struct integral_rank;

 template<> struct integral_rank<bool>           : int_<1> {};

 template<> struct integral_rank<signed char>    : int_<2> {};

 template<> struct integral_rank<char>           : int_<3> {};

 template<> struct integral_rank<unsigned char>  : int_<4> {};

 #if !defined(BOOST_NO_INTRINSIC_WCHAR_T)

 template<> struct integral_rank<wchar_t>        : int_<5> {};

 #endif

 template<> struct integral_rank<short>          : int_<6> {};

 template<> struct integral_rank<unsigned short> : int_<7> {};

 template<> struct integral_rank<int>            : int_<8> {};

 template<> struct integral_rank<unsigned int>   : int_<9> {};

 template<> struct integral_rank<long>           : int_<10> {};

 template<> struct integral_rank<unsigned long>  : int_<11> {};

 #if defined(BOOST_HAS_LONG_LONG)

 template<> struct integral_rank<long_long_type> : int_<12> {};

 template<> struct integral_rank<ulong_long_type>: int_<13> {};

 #endif

 template< typename T1, typename T2 > struct largest_int

 #if !defined(BOOST_MPL_CFG_NO_NESTED_VALUE_ARITHMETIC)

     : if_c< 

           ( integral_rank<T1>::value >= integral_rank<T2>::value )

         , T1

         , T2

         >

 {

 #else

 {

     enum { rank1 = integral_rank<T1>::value };

     enum { rank2 = integral_rank<T2>::value };

     typedef typename if_c< (rank1 >= rank2),T1,T2 >::type type;

 #endif

 };

 }}}

 #endif // BOOST_MPL_AUX_LARGEST_INT_HPP_INCLUDED