64 lines
2.0 KiB
Plaintext
64 lines
2.0 KiB
Plaintext
|
|
||
|
|
#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.
|
||
|
|
|
||
|
|
// $Id$
|
||
|
|
// $Date$
|
||
|
|
// $Revision$
|
||
|
|
|
||
|
|
#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
|