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- #ifndef BOOST_INTEGER_HPP
- #define BOOST_INTEGER_HPP
- #include <boost/integer_fwd.hpp>
- #include <boost/integer_traits.hpp>
- #include <boost/limits.hpp>
- namespace boost
- {
-
-
-
- template< typename LeastInt >
- struct int_fast_t { typedef LeastInt fast; };
-
- template< int Category > struct int_least_helper {};
-
-
-
- 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; };
-
-
- template< int Bits >
- struct int_t
- {
- typedef typename 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)
- >::least least;
- typedef typename int_fast_t<least>::fast fast;
- };
-
- template< int Bits >
- struct uint_t
- {
- typedef typename 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)
- >::least least;
- typedef typename int_fast_t<least>::fast fast;
-
- };
-
-
- template< long MaxValue >
- struct int_max_value_t
- {
- typedef typename 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)
- >::least least;
- typedef typename int_fast_t<least>::fast fast;
- };
- template< long MinValue >
- struct int_min_value_t
- {
- typedef typename 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)
- >::least least;
- typedef typename int_fast_t<least>::fast fast;
- };
-
- template< unsigned long Value >
- struct uint_value_t
- {
- typedef typename 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)
- >::least least;
- typedef typename int_fast_t<least>::fast fast;
- };
- }
- #endif
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