164 lines
6.8 KiB
Plaintext
164 lines
6.8 KiB
Plaintext
|
|
||
|
|
// (C) Copyright John Maddock 2005.
|
||
|
|
// 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_IS_UNSIGNED_HPP_INCLUDED
|
||
|
|
#define BOOST_TT_IS_UNSIGNED_HPP_INCLUDED
|
||
|
|
|
||
|
|
#include <boost/type_traits/is_integral.hpp>
|
||
|
|
#include <boost/type_traits/is_enum.hpp>
|
||
|
|
#include <boost/type_traits/remove_cv.hpp>
|
||
|
|
|
||
|
|
#include <climits>
|
||
|
|
|
||
|
|
namespace boost {
|
||
|
|
|
||
|
|
#if !defined( __CODEGEARC__ )
|
||
|
|
|
||
|
|
#if !(defined(BOOST_MSVC) && BOOST_MSVC <= 1310) &&\
|
||
|
|
!(defined(__EDG_VERSION__) && __EDG_VERSION__ <= 238) &&\
|
||
|
|
!defined(BOOST_NO_INCLASS_MEMBER_INITIALIZATION)
|
||
|
|
|
||
|
|
namespace detail{
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
struct is_unsigned_values
|
||
|
|
{
|
||
|
|
//
|
||
|
|
// Note that we cannot use BOOST_STATIC_CONSTANT here, using enum's
|
||
|
|
// rather than "real" static constants simply doesn't work or give
|
||
|
|
// the correct answer.
|
||
|
|
//
|
||
|
|
typedef typename remove_cv<T>::type no_cv_t;
|
||
|
|
static const no_cv_t minus_one = (static_cast<no_cv_t>(-1));
|
||
|
|
static const no_cv_t zero = (static_cast<no_cv_t>(0));
|
||
|
|
};
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
struct is_ununsigned_helper
|
||
|
|
{
|
||
|
|
BOOST_STATIC_CONSTANT(bool, value = (::boost::detail::is_unsigned_values<T>::minus_one > ::boost::detail::is_unsigned_values<T>::zero));
|
||
|
|
};
|
||
|
|
|
||
|
|
template <bool integral_type>
|
||
|
|
struct is_unsigned_select_helper
|
||
|
|
{
|
||
|
|
template <class T>
|
||
|
|
struct rebind
|
||
|
|
{
|
||
|
|
typedef is_ununsigned_helper<T> type;
|
||
|
|
};
|
||
|
|
};
|
||
|
|
|
||
|
|
template <>
|
||
|
|
struct is_unsigned_select_helper<false>
|
||
|
|
{
|
||
|
|
template <class T>
|
||
|
|
struct rebind
|
||
|
|
{
|
||
|
|
typedef false_type type;
|
||
|
|
};
|
||
|
|
};
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
struct is_unsigned
|
||
|
|
{
|
||
|
|
typedef ::boost::detail::is_unsigned_select_helper< ::boost::is_integral<T>::value || ::boost::is_enum<T>::value > selector;
|
||
|
|
typedef typename selector::template rebind<T> binder;
|
||
|
|
typedef typename binder::type type;
|
||
|
|
BOOST_STATIC_CONSTANT(bool, value = type::value);
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace detail
|
||
|
|
|
||
|
|
template <class T> struct is_unsigned : public integral_constant<bool, boost::detail::is_unsigned<T>::value> {};
|
||
|
|
|
||
|
|
#else
|
||
|
|
|
||
|
|
template <class T> struct is_unsigned : public false_type{};
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#else // defined( __CODEGEARC__ )
|
||
|
|
template <class T> struct is_unsigned : public integral_constant<bool, __is_unsigned(T)> {};
|
||
|
|
#endif
|
||
|
|
|
||
|
|
template <> struct is_unsigned<unsigned char> : public true_type{};
|
||
|
|
template <> struct is_unsigned<const unsigned char> : public true_type{};
|
||
|
|
template <> struct is_unsigned<volatile unsigned char> : public true_type{};
|
||
|
|
template <> struct is_unsigned<const volatile unsigned char> : public true_type{};
|
||
|
|
template <> struct is_unsigned<unsigned short> : public true_type{};
|
||
|
|
template <> struct is_unsigned<const unsigned short> : public true_type{};
|
||
|
|
template <> struct is_unsigned<volatile unsigned short> : public true_type{};
|
||
|
|
template <> struct is_unsigned<const volatile unsigned short> : public true_type{};
|
||
|
|
template <> struct is_unsigned<unsigned int> : public true_type{};
|
||
|
|
template <> struct is_unsigned<const unsigned int> : public true_type{};
|
||
|
|
template <> struct is_unsigned<volatile unsigned int> : public true_type{};
|
||
|
|
template <> struct is_unsigned<const volatile unsigned int> : public true_type{};
|
||
|
|
template <> struct is_unsigned<unsigned long> : public true_type{};
|
||
|
|
template <> struct is_unsigned<const unsigned long> : public true_type{};
|
||
|
|
template <> struct is_unsigned<volatile unsigned long> : public true_type{};
|
||
|
|
template <> struct is_unsigned<const volatile unsigned long> : public true_type{};
|
||
|
|
|
||
|
|
template <> struct is_unsigned<signed char> : public false_type{};
|
||
|
|
template <> struct is_unsigned<const signed char> : public false_type{};
|
||
|
|
template <> struct is_unsigned<volatile signed char> : public false_type{};
|
||
|
|
template <> struct is_unsigned<const volatile signed char> : public false_type{};
|
||
|
|
template <> struct is_unsigned< short> : public false_type{};
|
||
|
|
template <> struct is_unsigned<const short> : public false_type{};
|
||
|
|
template <> struct is_unsigned<volatile short> : public false_type{};
|
||
|
|
template <> struct is_unsigned<const volatile short> : public false_type{};
|
||
|
|
template <> struct is_unsigned< int> : public false_type{};
|
||
|
|
template <> struct is_unsigned<const int> : public false_type{};
|
||
|
|
template <> struct is_unsigned<volatile int> : public false_type{};
|
||
|
|
template <> struct is_unsigned<const volatile int> : public false_type{};
|
||
|
|
template <> struct is_unsigned< long> : public false_type{};
|
||
|
|
template <> struct is_unsigned<const long> : public false_type{};
|
||
|
|
template <> struct is_unsigned<volatile long> : public false_type{};
|
||
|
|
template <> struct is_unsigned<const volatile long> : public false_type{};
|
||
|
|
#ifdef BOOST_HAS_LONG_LONG
|
||
|
|
template <> struct is_unsigned< ::boost::ulong_long_type> : public true_type{};
|
||
|
|
template <> struct is_unsigned<const ::boost::ulong_long_type> : public true_type{};
|
||
|
|
template <> struct is_unsigned<volatile ::boost::ulong_long_type> : public true_type{};
|
||
|
|
template <> struct is_unsigned<const volatile ::boost::ulong_long_type> : public true_type{};
|
||
|
|
|
||
|
|
template <> struct is_unsigned< ::boost::long_long_type> : public false_type{};
|
||
|
|
template <> struct is_unsigned<const ::boost::long_long_type> : public false_type{};
|
||
|
|
template <> struct is_unsigned<volatile ::boost::long_long_type> : public false_type{};
|
||
|
|
template <> struct is_unsigned<const volatile ::boost::long_long_type> : public false_type{};
|
||
|
|
#endif
|
||
|
|
#if defined(CHAR_MIN)
|
||
|
|
#if CHAR_MIN == 0
|
||
|
|
template <> struct is_unsigned<char> : public true_type{};
|
||
|
|
template <> struct is_unsigned<const char> : public true_type{};
|
||
|
|
template <> struct is_unsigned<volatile char> : public true_type{};
|
||
|
|
template <> struct is_unsigned<const volatile char> : public true_type{};
|
||
|
|
#else
|
||
|
|
template <> struct is_unsigned<char> : public false_type{};
|
||
|
|
template <> struct is_unsigned<const char> : public false_type{};
|
||
|
|
template <> struct is_unsigned<volatile char> : public false_type{};
|
||
|
|
template <> struct is_unsigned<const volatile char> : public false_type{};
|
||
|
|
#endif
|
||
|
|
#endif
|
||
|
|
#if !defined(BOOST_NO_INTRINSIC_WCHAR_T) && defined(WCHAR_MIN)
|
||
|
|
#if WCHAR_MIN == 0
|
||
|
|
template <> struct is_unsigned<wchar_t> : public true_type{};
|
||
|
|
template <> struct is_unsigned<const wchar_t> : public true_type{};
|
||
|
|
template <> struct is_unsigned<volatile wchar_t> : public true_type{};
|
||
|
|
template <> struct is_unsigned<const volatile wchar_t> : public true_type{};
|
||
|
|
#else
|
||
|
|
template <> struct is_unsigned<wchar_t> : public false_type{};
|
||
|
|
template <> struct is_unsigned<const wchar_t> : public false_type{};
|
||
|
|
template <> struct is_unsigned<volatile wchar_t> : public false_type{};
|
||
|
|
template <> struct is_unsigned<const volatile wchar_t> : public false_type{};
|
||
|
|
#endif
|
||
|
|
#endif
|
||
|
|
} // namespace boost
|
||
|
|
|
||
|
|
#endif // BOOST_TT_IS_MEMBER_FUNCTION_POINTER_HPP_INCLUDED
|