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// (C) Copyright John Maddock 2007.
// Use, modification and distribution are subject to 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/type_traits for most recent version including documentation.
#ifndef BOOST_TT_MAKE_UNSIGNED_HPP_INCLUDED
#define BOOST_TT_MAKE_UNSIGNED_HPP_INCLUDED
#include <boost/mpl/if.hpp>
#include <boost/type_traits/is_integral.hpp>
#include <boost/type_traits/is_signed.hpp>
#include <boost/type_traits/is_unsigned.hpp>
#include <boost/type_traits/is_enum.hpp>
#include <boost/type_traits/is_same.hpp>
#include <boost/type_traits/remove_cv.hpp>
#include <boost/type_traits/is_const.hpp>
#include <boost/type_traits/is_volatile.hpp>
#include <boost/type_traits/add_const.hpp>
#include <boost/type_traits/add_volatile.hpp>
#include <boost/type_traits/detail/ice_or.hpp>
#include <boost/type_traits/detail/ice_and.hpp>
#include <boost/type_traits/detail/ice_not.hpp>
#include <boost/static_assert.hpp>
// should be the last #include
#include <boost/type_traits/detail/type_trait_def.hpp>
namespace boost {
namespace detail {
template <class T>
struct make_unsigned_imp
{
BOOST_STATIC_ASSERT(
(::boost::type_traits::ice_or< ::boost::is_integral<T>::value, ::boost::is_enum<T>::value>::value));
#if !BOOST_WORKAROUND(BOOST_MSVC, <=1300)
BOOST_STATIC_ASSERT(
(::boost::type_traits::ice_not< ::boost::is_same<
typename remove_cv<T>::type, bool>::value>::value));
#endif
typedef typename remove_cv<T>::type t_no_cv;
typedef typename mpl::if_c<
(::boost::type_traits::ice_and<
::boost::is_unsigned<T>::value,
::boost::is_integral<T>::value,
::boost::type_traits::ice_not< ::boost::is_same<t_no_cv, char>::value>::value,
::boost::type_traits::ice_not< ::boost::is_same<t_no_cv, wchar_t>::value>::value,
::boost::type_traits::ice_not< ::boost::is_same<t_no_cv, bool>::value>::value >::value),
T,
typename mpl::if_c<
(::boost::type_traits::ice_and<
::boost::is_integral<T>::value,
::boost::type_traits::ice_not< ::boost::is_same<t_no_cv, char>::value>::value,
::boost::type_traits::ice_not< ::boost::is_same<t_no_cv, wchar_t>::value>::value,
::boost::type_traits::ice_not< ::boost::is_same<t_no_cv, bool>::value>::value>
::value),
typename mpl::if_<
is_same<t_no_cv, signed char>,
unsigned char,
typename mpl::if_<
is_same<t_no_cv, short>,
unsigned short,
typename mpl::if_<
is_same<t_no_cv, int>,
unsigned int,
typename mpl::if_<
is_same<t_no_cv, long>,
unsigned long,
#if defined(BOOST_HAS_LONG_LONG)
boost::ulong_long_type
#elif defined(BOOST_HAS_MS_INT64)
unsigned __int64
#else
unsigned long
#endif
>::type
>::type
>::type
>::type,
// Not a regular integer type:
typename mpl::if_c<
sizeof(t_no_cv) == sizeof(unsigned char),
unsigned char,
typename mpl::if_c<
sizeof(t_no_cv) == sizeof(unsigned short),
unsigned short,
typename mpl::if_c<
sizeof(t_no_cv) == sizeof(unsigned int),
unsigned int,
typename mpl::if_c<
sizeof(t_no_cv) == sizeof(unsigned long),
unsigned long,
#if defined(BOOST_HAS_LONG_LONG)
boost::ulong_long_type
#elif defined(BOOST_HAS_MS_INT64)
unsigned __int64
#else
unsigned long
#endif
>::type
>::type
>::type
>::type
>::type
>::type base_integer_type;
// Add back any const qualifier:
typedef typename mpl::if_<
is_const<T>,
typename add_const<base_integer_type>::type,
base_integer_type
>::type const_base_integer_type;
// Add back any volatile qualifier:
typedef typename mpl::if_<
is_volatile<T>,
typename add_volatile<const_base_integer_type>::type,
const_base_integer_type
>::type type;
};
} // namespace detail
BOOST_TT_AUX_TYPE_TRAIT_DEF1(make_unsigned,T,typename boost::detail::make_unsigned_imp<T>::type)
} // namespace boost
#include <boost/type_traits/detail/type_trait_undef.hpp>
#endif // BOOST_TT_ADD_REFERENCE_HPP_INCLUDED
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