williamr@2: williamr@2: #ifndef BOOST_MPL_AUX_LARGEST_INT_HPP_INCLUDED williamr@2: #define BOOST_MPL_AUX_LARGEST_INT_HPP_INCLUDED williamr@2: williamr@2: // Copyright Aleksey Gurtovoy 2000-2004 williamr@2: // williamr@2: // Distributed under the Boost Software License, Version 1.0. williamr@2: // (See accompanying file LICENSE_1_0.txt or copy at williamr@2: // http://www.boost.org/LICENSE_1_0.txt) williamr@2: // williamr@2: // See http://www.boost.org/libs/mpl for documentation. williamr@2: williamr@2: // $Source: /cvsroot/boost/boost/boost/mpl/aux_/largest_int.hpp,v $ williamr@2: // $Date: 2004/09/19 03:08:53 $ williamr@2: // $Revision: 1.5 $ williamr@2: williamr@2: #include williamr@2: #include williamr@2: #include williamr@2: #include williamr@2: williamr@2: namespace boost { namespace mpl { namespace aux { williamr@2: williamr@2: template< typename T > struct integral_rank; williamr@2: williamr@2: template<> struct integral_rank : int_<1> {}; williamr@2: template<> struct integral_rank : int_<2> {}; williamr@2: template<> struct integral_rank : int_<3> {}; williamr@2: template<> struct integral_rank : int_<4> {}; williamr@2: #if !defined(BOOST_NO_INTRINSIC_WCHAR_T) williamr@2: template<> struct integral_rank : int_<5> {}; williamr@2: #endif williamr@2: template<> struct integral_rank : int_<6> {}; williamr@2: template<> struct integral_rank : int_<7> {}; williamr@2: template<> struct integral_rank : int_<8> {}; williamr@2: template<> struct integral_rank : int_<9> {}; williamr@2: template<> struct integral_rank : int_<10> {}; williamr@2: template<> struct integral_rank : int_<11> {}; williamr@2: williamr@2: #if defined(BOOST_HAS_LONG_LONG) williamr@2: template<> struct integral_rank : int_<12> {}; williamr@2: template<> struct integral_rank: int_<13> {}; williamr@2: #endif williamr@2: williamr@2: template< typename T1, typename T2 > struct largest_int williamr@2: #if !defined(BOOST_MPL_CFG_NO_NESTED_VALUE_ARITHMETIC) williamr@2: : if_c< williamr@2: ( integral_rank::value >= integral_rank::value ) williamr@2: , T1 williamr@2: , T2 williamr@2: > williamr@2: { williamr@2: #else williamr@2: { williamr@2: enum { rank1 = integral_rank::value }; williamr@2: enum { rank2 = integral_rank::value }; williamr@2: typedef typename if_c< (rank1 >= rank2),T1,T2 >::type type; williamr@2: #endif williamr@2: }; williamr@2: williamr@2: }}} williamr@2: williamr@2: #endif // BOOST_MPL_AUX_LARGEST_INT_HPP_INCLUDED