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Diffstat (limited to '3rdParty/Boost/src/boost/integer_traits.hpp')
| -rw-r--r-- | 3rdParty/Boost/src/boost/integer_traits.hpp | 236 |
1 files changed, 236 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/integer_traits.hpp b/3rdParty/Boost/src/boost/integer_traits.hpp new file mode 100644 index 0000000..ac4ef32 --- /dev/null +++ b/3rdParty/Boost/src/boost/integer_traits.hpp @@ -0,0 +1,236 @@ +/* boost integer_traits.hpp header file + * + * Copyright Jens Maurer 2000 + * 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) + * + * $Id: integer_traits.hpp 32576 2006-02-05 10:19:42Z johnmaddock $ + * + * Idea by Beman Dawes, Ed Brey, Steve Cleary, and Nathan Myers + */ + +// See http://www.boost.org/libs/integer for documentation. + + +#ifndef BOOST_INTEGER_TRAITS_HPP +#define BOOST_INTEGER_TRAITS_HPP + +#include <boost/config.hpp> +#include <boost/limits.hpp> + +// These are an implementation detail and not part of the interface +#include <limits.h> +// we need wchar.h for WCHAR_MAX/MIN but not all platforms provide it, +// and some may have <wchar.h> but not <cwchar> ... +#if !defined(BOOST_NO_INTRINSIC_WCHAR_T) && (!defined(BOOST_NO_CWCHAR) || defined(sun) || defined(__sun) || defined(__QNX__)) +#include <wchar.h> +#endif + + +namespace boost { +template<class T> +class integer_traits : public std::numeric_limits<T> +{ +public: + BOOST_STATIC_CONSTANT(bool, is_integral = false); +}; + +namespace detail { +template<class T, T min_val, T max_val> +class integer_traits_base +{ +public: + BOOST_STATIC_CONSTANT(bool, is_integral = true); + BOOST_STATIC_CONSTANT(T, const_min = min_val); + BOOST_STATIC_CONSTANT(T, const_max = max_val); +}; + +#ifndef BOOST_NO_INCLASS_MEMBER_INITIALIZATION +// A definition is required even for integral static constants +template<class T, T min_val, T max_val> +const bool integer_traits_base<T, min_val, max_val>::is_integral; + +template<class T, T min_val, T max_val> +const T integer_traits_base<T, min_val, max_val>::const_min; + +template<class T, T min_val, T max_val> +const T integer_traits_base<T, min_val, max_val>::const_max; +#endif + +} // namespace detail + +template<> +class integer_traits<bool> + : public std::numeric_limits<bool>, + public detail::integer_traits_base<bool, false, true> +{ }; + +template<> +class integer_traits<char> + : public std::numeric_limits<char>, + public detail::integer_traits_base<char, CHAR_MIN, CHAR_MAX> +{ }; + +template<> +class integer_traits<signed char> + : public std::numeric_limits<signed char>, + public detail::integer_traits_base<signed char, SCHAR_MIN, SCHAR_MAX> +{ }; + +template<> +class integer_traits<unsigned char> + : public std::numeric_limits<unsigned char>, + public detail::integer_traits_base<unsigned char, 0, UCHAR_MAX> +{ }; + +#ifndef BOOST_NO_INTRINSIC_WCHAR_T +template<> +class integer_traits<wchar_t> + : public std::numeric_limits<wchar_t>, + // Don't trust WCHAR_MIN and WCHAR_MAX with Mac OS X's native + // library: they are wrong! +#if defined(WCHAR_MIN) && defined(WCHAR_MAX) && !defined(__APPLE__) + public detail::integer_traits_base<wchar_t, WCHAR_MIN, WCHAR_MAX> +#elif defined(__BORLANDC__) || defined(__CYGWIN__) || defined(__MINGW32__) || (defined(__BEOS__) && defined(__GNUC__)) + // No WCHAR_MIN and WCHAR_MAX, whar_t is short and unsigned: + public detail::integer_traits_base<wchar_t, 0, 0xffff> +#elif (defined(__sgi) && (!defined(__SGI_STL_PORT) || __SGI_STL_PORT < 0x400))\ + || (defined __APPLE__)\ + || (defined(__OpenBSD__) && defined(__GNUC__))\ + || (defined(__NetBSD__) && defined(__GNUC__))\ + || (defined(__FreeBSD__) && defined(__GNUC__))\ + || (defined(__DragonFly__) && defined(__GNUC__))\ + || (defined(__hpux) && defined(__GNUC__) && (__GNUC__ == 3) && !defined(__SGI_STL_PORT)) + // No WCHAR_MIN and WCHAR_MAX, wchar_t has the same range as int. + // - SGI MIPSpro with native library + // - gcc 3.x on HP-UX + // - Mac OS X with native library + // - gcc on FreeBSD, OpenBSD and NetBSD + public detail::integer_traits_base<wchar_t, INT_MIN, INT_MAX> +#elif defined(__hpux) && defined(__GNUC__) && (__GNUC__ == 2) && !defined(__SGI_STL_PORT) + // No WCHAR_MIN and WCHAR_MAX, wchar_t has the same range as unsigned int. + // - gcc 2.95.x on HP-UX + // (also, std::numeric_limits<wchar_t> appears to return the wrong values). + public detail::integer_traits_base<wchar_t, 0, UINT_MAX> +#else +#error No WCHAR_MIN and WCHAR_MAX present, please adjust integer_traits<> for your compiler. +#endif +{ }; +#endif // BOOST_NO_INTRINSIC_WCHAR_T + +template<> +class integer_traits<short> + : public std::numeric_limits<short>, + public detail::integer_traits_base<short, SHRT_MIN, SHRT_MAX> +{ }; + +template<> +class integer_traits<unsigned short> + : public std::numeric_limits<unsigned short>, + public detail::integer_traits_base<unsigned short, 0, USHRT_MAX> +{ }; + +template<> +class integer_traits<int> + : public std::numeric_limits<int>, + public detail::integer_traits_base<int, INT_MIN, INT_MAX> +{ }; + +template<> +class integer_traits<unsigned int> + : public std::numeric_limits<unsigned int>, + public detail::integer_traits_base<unsigned int, 0, UINT_MAX> +{ }; + +template<> +class integer_traits<long> + : public std::numeric_limits<long>, + public detail::integer_traits_base<long, LONG_MIN, LONG_MAX> +{ }; + +template<> +class integer_traits<unsigned long> + : public std::numeric_limits<unsigned long>, + public detail::integer_traits_base<unsigned long, 0, ULONG_MAX> +{ }; + +#if !defined(BOOST_NO_INTEGRAL_INT64_T) && !defined(BOOST_NO_INT64_T) +#if defined(ULLONG_MAX) && defined(BOOST_HAS_LONG_LONG) + +template<> +class integer_traits< ::boost::long_long_type> + : public std::numeric_limits< ::boost::long_long_type>, + public detail::integer_traits_base< ::boost::long_long_type, LLONG_MIN, LLONG_MAX> +{ }; + +template<> +class integer_traits< ::boost::ulong_long_type> + : public std::numeric_limits< ::boost::ulong_long_type>, + public detail::integer_traits_base< ::boost::ulong_long_type, 0, ULLONG_MAX> +{ }; + +#elif defined(ULONG_LONG_MAX) && defined(BOOST_HAS_LONG_LONG) + +template<> +class integer_traits< ::boost::long_long_type> : public std::numeric_limits< ::boost::long_long_type>, public detail::integer_traits_base< ::boost::long_long_type, LONG_LONG_MIN, LONG_LONG_MAX>{ }; +template<> +class integer_traits< ::boost::ulong_long_type> + : public std::numeric_limits< ::boost::ulong_long_type>, + public detail::integer_traits_base< ::boost::ulong_long_type, 0, ULONG_LONG_MAX> +{ }; + +#elif defined(ULONGLONG_MAX) && defined(BOOST_HAS_LONG_LONG) + +template<> +class integer_traits< ::boost::long_long_type> + : public std::numeric_limits< ::boost::long_long_type>, + public detail::integer_traits_base< ::boost::long_long_type, LONGLONG_MIN, LONGLONG_MAX> +{ }; + +template<> +class integer_traits< ::boost::ulong_long_type> + : public std::numeric_limits< ::boost::ulong_long_type>, + public detail::integer_traits_base< ::boost::ulong_long_type, 0, ULONGLONG_MAX> +{ }; + +#elif defined(_LLONG_MAX) && defined(_C2) && defined(BOOST_HAS_LONG_LONG) + +template<> +class integer_traits< ::boost::long_long_type> + : public std::numeric_limits< ::boost::long_long_type>, + public detail::integer_traits_base< ::boost::long_long_type, -_LLONG_MAX - _C2, _LLONG_MAX> +{ }; + +template<> +class integer_traits< ::boost::ulong_long_type> + : public std::numeric_limits< ::boost::ulong_long_type>, + public detail::integer_traits_base< ::boost::ulong_long_type, 0, _ULLONG_MAX> +{ }; + +#elif defined(BOOST_HAS_LONG_LONG) +// +// we have long long but no constants, this happens for example with gcc in -ansi mode, +// we'll just have to work out the values for ourselves (assumes 2's compliment representation): +// +template<> +class integer_traits< ::boost::long_long_type> + : public std::numeric_limits< ::boost::long_long_type>, + public detail::integer_traits_base< ::boost::long_long_type, (1LL << (sizeof(::boost::long_long_type) - 1)), ~(1LL << (sizeof(::boost::long_long_type) - 1))> +{ }; + +template<> +class integer_traits< ::boost::ulong_long_type> + : public std::numeric_limits< ::boost::ulong_long_type>, + public detail::integer_traits_base< ::boost::ulong_long_type, 0, ~0uLL> +{ }; + +#endif +#endif + +} // namespace boost + +#endif /* BOOST_INTEGER_TRAITS_HPP */ + + + |