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+// boost integer.hpp header file -------------------------------------------//
+
+// Copyright Beman Dawes and Daryle Walker 1999. 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/integer for documentation.
+
+// Revision History
+// 22 Sep 01 Added value-based integer templates. (Daryle Walker)
+// 01 Apr 01 Modified to use new <boost/limits.hpp> header. (John Maddock)
+// 30 Jul 00 Add typename syntax fix (Jens Maurer)
+// 28 Aug 99 Initial version
+
+#ifndef BOOST_INTEGER_HPP
+#define BOOST_INTEGER_HPP
+
+#include <boost/integer_fwd.hpp> // self include
+
+#include <boost/integer_traits.hpp> // for boost::::boost::integer_traits
+#include <boost/limits.hpp> // for ::std::numeric_limits
+#include <boost/cstdint.hpp> // for boost::int64_t and BOOST_NO_INTEGRAL_INT64_T
+
+//
+// We simply cannot include this header on gcc without getting copious warnings of the kind:
+//
+// boost/integer.hpp:77:30: warning: use of C99 long long integer constant
+//
+// And yet there is no other reasonable implementation, so we declare this a system header
+// to suppress these warnings.
+//
+#if defined(__GNUC__) && (__GNUC__ >= 4)
+#pragma GCC system_header
+#endif
+
+namespace boost
+{
+
+ // Helper templates ------------------------------------------------------//
+
+ // fast integers from least integers
+ // int_fast_t<> works correctly for unsigned too, in spite of the name.
+ template< typename LeastInt >
+ struct int_fast_t
+ {
+ typedef LeastInt fast;
+ typedef fast type;
+ }; // imps may specialize
+
+ namespace detail{
+
+ // convert category to type
+ template< int Category > struct int_least_helper {}; // default is empty
+
+ // specializatons: 1=long, 2=int, 3=short, 4=signed char,
+ // 6=unsigned long, 7=unsigned int, 8=unsigned short, 9=unsigned char
+ // no specializations for 0 and 5: requests for a type > long are in error
+#ifdef BOOST_HAS_LONG_LONG
+ template<> struct int_least_helper<1> { typedef boost::long_long_type least; };
+#endif
+ template<> struct int_least_helper<2> { typedef long least; };
+ template<> struct int_least_helper<3> { typedef int least; };
+ template<> struct int_least_helper<4> { typedef short least; };
+ template<> struct int_least_helper<5> { typedef signed char least; };
+#ifdef BOOST_HAS_LONG_LONG
+ template<> struct int_least_helper<6> { typedef boost::ulong_long_type least; };
+#endif
+ template<> struct int_least_helper<7> { typedef unsigned long least; };
+ template<> struct int_least_helper<8> { typedef unsigned int least; };
+ template<> struct int_least_helper<9> { typedef unsigned short least; };
+ template<> struct int_least_helper<10> { typedef unsigned char least; };
+
+ template <int Bits>
+ struct exact_signed_base_helper{};
+ template <int Bits>
+ struct exact_unsigned_base_helper{};
+
+ template <> struct exact_signed_base_helper<sizeof(signed char)* CHAR_BIT> { typedef signed char exact; };
+ template <> struct exact_unsigned_base_helper<sizeof(unsigned char)* CHAR_BIT> { typedef unsigned char exact; };
+#if USHRT_MAX != UCHAR_MAX
+ template <> struct exact_signed_base_helper<sizeof(short)* CHAR_BIT> { typedef short exact; };
+ template <> struct exact_unsigned_base_helper<sizeof(unsigned short)* CHAR_BIT> { typedef unsigned short exact; };
+#endif
+#if UINT_MAX != USHRT_MAX
+ template <> struct exact_signed_base_helper<sizeof(int)* CHAR_BIT> { typedef int exact; };
+ template <> struct exact_unsigned_base_helper<sizeof(unsigned int)* CHAR_BIT> { typedef unsigned int exact; };
+#endif
+#if ULONG_MAX != UINT_MAX
+ template <> struct exact_signed_base_helper<sizeof(long)* CHAR_BIT> { typedef long exact; };
+ template <> struct exact_unsigned_base_helper<sizeof(unsigned long)* CHAR_BIT> { typedef unsigned long exact; };
+#endif
+#if defined(BOOST_HAS_LONG_LONG) &&\
+ ((defined(ULLONG_MAX) && (ULLONG_MAX != ULONG_MAX)) ||\
+ (defined(ULONG_LONG_MAX) && (ULONG_LONG_MAX != ULONG_MAX)) ||\
+ (defined(ULONGLONG_MAX) && (ULONGLONG_MAX != ULONG_MAX)) ||\
+ (defined(_ULLONG_MAX) && (_ULLONG_MAX != ULONG_MAX)))
+ template <> struct exact_signed_base_helper<sizeof(boost::long_long_type)* CHAR_BIT> { typedef boost::long_long_type exact; };
+ template <> struct exact_unsigned_base_helper<sizeof(boost::ulong_long_type)* CHAR_BIT> { typedef boost::ulong_long_type exact; };
+#endif
+
+
+ } // namespace detail
+
+ // integer templates specifying number of bits ---------------------------//
+
+ // signed
+ template< int Bits > // bits (including sign) required
+ struct int_t : public detail::exact_signed_base_helper<Bits>
+ {
+ typedef typename detail::int_least_helper
+ <
+#ifdef BOOST_HAS_LONG_LONG
+ (Bits-1 <= (int)(sizeof(boost::long_long_type) * CHAR_BIT)) +
+#else
+ 1 +
+#endif
+ (Bits-1 <= ::std::numeric_limits<long>::digits) +
+ (Bits-1 <= ::std::numeric_limits<int>::digits) +
+ (Bits-1 <= ::std::numeric_limits<short>::digits) +
+ (Bits-1 <= ::std::numeric_limits<signed char>::digits)
+ >::least least;
+ typedef typename int_fast_t<least>::type fast;
+ };
+
+ // unsigned
+ template< int Bits > // bits required
+ struct uint_t : public detail::exact_unsigned_base_helper<Bits>
+ {
+#if (defined(__BORLANDC__) || defined(__CODEGEAR__)) && defined(BOOST_NO_INTEGRAL_INT64_T)
+ // It's really not clear why this workaround should be needed... shrug I guess! JM
+ BOOST_STATIC_CONSTANT(int, s =
+ 6 +
+ (Bits <= ::std::numeric_limits<unsigned long>::digits) +
+ (Bits <= ::std::numeric_limits<unsigned int>::digits) +
+ (Bits <= ::std::numeric_limits<unsigned short>::digits) +
+ (Bits <= ::std::numeric_limits<unsigned char>::digits));
+ typedef typename detail::int_least_helper< ::boost::uint_t<Bits>::s>::least least;
+#else
+ typedef typename detail::int_least_helper
+ <
+ 5 +
+#ifdef BOOST_HAS_LONG_LONG
+ (Bits-1 <= (int)(sizeof(boost::long_long_type) * CHAR_BIT)) +
+#else
+ 1 +
+#endif
+ (Bits <= ::std::numeric_limits<unsigned long>::digits) +
+ (Bits <= ::std::numeric_limits<unsigned int>::digits) +
+ (Bits <= ::std::numeric_limits<unsigned short>::digits) +
+ (Bits <= ::std::numeric_limits<unsigned char>::digits)
+ >::least least;
+#endif
+ typedef typename int_fast_t<least>::type fast;
+ // int_fast_t<> works correctly for unsigned too, in spite of the name.
+ };
+
+ // integer templates specifying extreme value ----------------------------//
+
+ // signed
+#if !defined(BOOST_NO_INTEGRAL_INT64_T) && defined(BOOST_HAS_LONG_LONG)
+ template< boost::long_long_type MaxValue > // maximum value to require support
+#else
+ template< long MaxValue > // maximum value to require support
+#endif
+ struct int_max_value_t
+ {
+ typedef typename detail::int_least_helper
+ <
+#if !defined(BOOST_NO_INTEGRAL_INT64_T) && defined(BOOST_HAS_LONG_LONG)
+ (MaxValue <= ::boost::integer_traits<boost::long_long_type>::const_max) +
+#else
+ 1 +
+#endif
+ (MaxValue <= ::boost::integer_traits<long>::const_max) +
+ (MaxValue <= ::boost::integer_traits<int>::const_max) +
+ (MaxValue <= ::boost::integer_traits<short>::const_max) +
+ (MaxValue <= ::boost::integer_traits<signed char>::const_max)
+ >::least least;
+ typedef typename int_fast_t<least>::type fast;
+ };
+
+#if !defined(BOOST_NO_INTEGRAL_INT64_T) && defined(BOOST_HAS_LONG_LONG)
+ template< boost::long_long_type MinValue > // minimum value to require support
+#else
+ template< long MinValue > // minimum value to require support
+#endif
+ struct int_min_value_t
+ {
+ typedef typename detail::int_least_helper
+ <
+#if !defined(BOOST_NO_INTEGRAL_INT64_T) && defined(BOOST_HAS_LONG_LONG)
+ (MinValue >= ::boost::integer_traits<boost::long_long_type>::const_min) +
+#else
+ 1 +
+#endif
+ (MinValue >= ::boost::integer_traits<long>::const_min) +
+ (MinValue >= ::boost::integer_traits<int>::const_min) +
+ (MinValue >= ::boost::integer_traits<short>::const_min) +
+ (MinValue >= ::boost::integer_traits<signed char>::const_min)
+ >::least least;
+ typedef typename int_fast_t<least>::type fast;
+ };
+
+ // unsigned
+#if !defined(BOOST_NO_INTEGRAL_INT64_T) && defined(BOOST_HAS_LONG_LONG)
+ template< boost::ulong_long_type MaxValue > // minimum value to require support
+#else
+ template< unsigned long MaxValue > // minimum value to require support
+#endif
+ struct uint_value_t
+ {
+#if (defined(__BORLANDC__) || defined(__CODEGEAR__))
+ // It's really not clear why this workaround should be needed... shrug I guess! JM
+#if defined(BOOST_NO_INTEGRAL_INT64_T)
+ BOOST_STATIC_CONSTANT(unsigned, which =
+ 6 +
+ (MaxValue <= ::boost::integer_traits<unsigned long>::const_max) +
+ (MaxValue <= ::boost::integer_traits<unsigned int>::const_max) +
+ (MaxValue <= ::boost::integer_traits<unsigned short>::const_max) +
+ (MaxValue <= ::boost::integer_traits<unsigned char>::const_max));
+ typedef typename detail::int_least_helper< ::boost::uint_value_t<MaxValue>::which>::least least;
+#else // BOOST_NO_INTEGRAL_INT64_T
+ BOOST_STATIC_CONSTANT(unsigned, which =
+ 5 +
+ (MaxValue <= ::boost::integer_traits<boost::ulong_long_type>::const_max) +
+ (MaxValue <= ::boost::integer_traits<unsigned long>::const_max) +
+ (MaxValue <= ::boost::integer_traits<unsigned int>::const_max) +
+ (MaxValue <= ::boost::integer_traits<unsigned short>::const_max) +
+ (MaxValue <= ::boost::integer_traits<unsigned char>::const_max));
+ typedef typename detail::int_least_helper< ::boost::uint_value_t<MaxValue>::which>::least least;
+#endif // BOOST_NO_INTEGRAL_INT64_T
+#else
+ typedef typename detail::int_least_helper
+ <
+ 5 +
+#if !defined(BOOST_NO_INTEGRAL_INT64_T) && defined(BOOST_HAS_LONG_LONG)
+ (MaxValue <= ::boost::integer_traits<boost::ulong_long_type>::const_max) +
+#else
+ 1 +
+#endif
+ (MaxValue <= ::boost::integer_traits<unsigned long>::const_max) +
+ (MaxValue <= ::boost::integer_traits<unsigned int>::const_max) +
+ (MaxValue <= ::boost::integer_traits<unsigned short>::const_max) +
+ (MaxValue <= ::boost::integer_traits<unsigned char>::const_max)
+ >::least least;
+#endif
+ typedef typename int_fast_t<least>::type fast;
+ };
+
+
+} // namespace boost
+
+#endif // BOOST_INTEGER_HPP