test_arithmetic_cpp_int_7.cpp 1.4 KB

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  1. ///////////////////////////////////////////////////////////////
  2. // Copyright 2012 John Maddock. Distributed under the Boost
  3. // Software License, Version 1.0. (See accompanying file
  4. // LICENSE_1_0.txt or copy at https://www.boost.org/LICENSE_1_0.txt
  5. #include <boost/multiprecision/cpp_int.hpp>
  6. #include "test_arithmetic.hpp"
  7. template <unsigned MinBits, unsigned MaxBits, boost::multiprecision::cpp_integer_type SignType, class Allocator, boost::multiprecision::expression_template_option ExpressionTemplates>
  8. struct is_twos_complement_integer<boost::multiprecision::number<boost::multiprecision::cpp_int_backend<MinBits, MaxBits, SignType, boost::multiprecision::checked, Allocator>, ExpressionTemplates> > : public boost::mpl::false_
  9. {};
  10. template <>
  11. struct related_type<boost::multiprecision::cpp_int>
  12. {
  13. typedef boost::multiprecision::int256_t type;
  14. };
  15. template <unsigned MinBits, unsigned MaxBits, boost::multiprecision::cpp_integer_type SignType, boost::multiprecision::cpp_int_check_type Checked, class Allocator, boost::multiprecision::expression_template_option ET>
  16. struct related_type<boost::multiprecision::number<boost::multiprecision::cpp_int_backend<MinBits, MaxBits, SignType, Checked, Allocator>, ET> >
  17. {
  18. typedef boost::multiprecision::number<boost::multiprecision::cpp_int_backend<MinBits / 2, MaxBits / 2, SignType, Checked, Allocator>, ET> type;
  19. };
  20. int main()
  21. {
  22. test<boost::multiprecision::cpp_rational>();
  23. return boost::report_errors();
  24. }