lyx_mirror/boost/boost/mpl/aux_/largest_int.hpp
Peter Kümmel c2f99181e6 update boost to version 1.36
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@26648 a592a061-630c-0410-9148-cb99ea01b6c8
2008-09-30 18:01:03 +00:00

64 lines
2.0 KiB
C++
Executable File

#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.
// $Source$
// $Date: 2004-09-18 23:08:53 -0400 (Sat, 18 Sep 2004) $
// $Revision: 25205 $
#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