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
6 #include <boost/multiprecision/cpp_int.hpp>
7
8 #include "test_arithmetic.hpp"
9
10 template <unsigned MinBits, unsigned MaxBits, boost::multiprecision::cpp_integer_type SignType, class Allocator, boost::multiprecision::expression_template_option ExpressionTemplates>
11 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_
12 {};
13
14 template <>
15 struct related_type<boost::multiprecision::cpp_int>
16 {
17 typedef boost::multiprecision::int256_t type;
18 };
19 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>
20 struct related_type<boost::multiprecision::number<boost::multiprecision::cpp_int_backend<MinBits, MaxBits, SignType, Checked, Allocator>, ET> >
21 {
22 typedef boost::multiprecision::number<boost::multiprecision::cpp_int_backend<MinBits / 2, MaxBits / 2, SignType, Checked, Allocator>, ET> type;
23 };
24
main()25 int main()
26 {
27 test<boost::multiprecision::number<boost::multiprecision::cpp_int_backend<500, 500, boost::multiprecision::signed_magnitude, boost::multiprecision::unchecked, void> > >();
28 return boost::report_errors();
29 }
30