#include <boost/integer_fwd.hpp> // self include
-#include <boost/integer_traits.hpp> // for boost::integer_traits
-#include <boost/limits.hpp> // for std::numeric_limits
+#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
{
// 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; }; // imps may specialize
+ 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 long
+ // 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
- template<> struct int_least_helper<1> { typedef long least; };
- template<> struct int_least_helper<2> { typedef int least; };
- template<> struct int_least_helper<3> { typedef short least; };
- template<> struct int_least_helper<4> { typedef signed char least; };
- template<> struct int_least_helper<6> { typedef unsigned long least; };
- template<> struct int_least_helper<7> { typedef unsigned int least; };
- template<> struct int_least_helper<8> { typedef unsigned short least; };
- template<> struct int_least_helper<9> { typedef unsigned char least; };
+#ifdef BOOST_HAS_LONG_LONG
+ template<> struct int_least_helper<1> { typedef boost::long_long_type least; };
+#elif defined(BOOST_HAS_MS_INT64)
+ template<> struct int_least_helper<1> { typedef __int64 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; };
+#elif defined(BOOST_HAS_MS_INT64)
+ template<> struct int_least_helper<6> { typedef unsigned __int64 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
+ struct int_t : public detail::exact_signed_base_helper<Bits>
{
- typedef typename int_least_helper
+ typedef typename detail::int_least_helper
<
- (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)
+#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>::fast fast;
+ typedef typename int_fast_t<least>::type fast;
};
// unsigned
template< int Bits > // bits required
- struct uint_t
+ struct uint_t : public detail::exact_unsigned_base_helper<Bits>
{
- typedef typename int_least_helper
+#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 +
- (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)
+#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;
- typedef typename int_fast_t<least>::fast fast;
+#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 int_least_helper
+ typedef typename detail::int_least_helper
<
- (MaxValue <= integer_traits<long>::const_max) +
- (MaxValue <= integer_traits<int>::const_max) +
- (MaxValue <= integer_traits<short>::const_max) +
- (MaxValue <= integer_traits<signed char>::const_max)
+#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>::fast fast;
+ 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 int_least_helper
+ typedef typename detail::int_least_helper
<
- (MinValue >= integer_traits<long>::const_min) +
- (MinValue >= integer_traits<int>::const_min) +
- (MinValue >= integer_traits<short>::const_min) +
- (MinValue >= integer_traits<signed char>::const_min)
+#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>::fast fast;
+ typedef typename int_fast_t<least>::type fast;
};
// unsigned
- template< unsigned long Value > // maximum value to require support
+#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
{
- typedef typename int_least_helper
+#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 +
- (Value <= integer_traits<unsigned long>::const_max) +
- (Value <= integer_traits<unsigned int>::const_max) +
- (Value <= integer_traits<unsigned short>::const_max) +
- (Value <= integer_traits<unsigned char>::const_max)
+#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;
- typedef typename int_fast_t<least>::fast fast;
+#endif
+ typedef typename int_fast_t<least>::type fast;
};
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