75 lines
1.9 KiB
C++
75 lines
1.9 KiB
C++
///////////////////////////////////////////////////////////////
|
|
// Copyright 2012 John Maddock. Distributed under the Boost
|
|
// Software License, Version 1.0. (See accompanying file
|
|
// LICENSE_1_0.txt or copy at https://www.boost.org/LICENSE_1_0.txt
|
|
//
|
|
|
|
#ifdef _MSC_VER
|
|
#define _SCL_SECURE_NO_WARNINGS
|
|
#endif
|
|
|
|
#include <boost/detail/lightweight_test.hpp>
|
|
#include <boost/array.hpp>
|
|
#include "test.hpp"
|
|
|
|
#include <boost/multiprecision/cpp_int.hpp>
|
|
|
|
int main()
|
|
{
|
|
using namespace boost::multiprecision;
|
|
//
|
|
// Test interconversions between different precisions:
|
|
//
|
|
cpp_int i1(2);
|
|
int128_t i2(3);
|
|
int256_t i3(4);
|
|
number<cpp_int_backend<32, 32, signed_magnitude, checked, void> > i4(5);
|
|
|
|
i1 = i3;
|
|
BOOST_TEST(i1 == 4);
|
|
i1 = i4;
|
|
BOOST_TEST(i1 == 5);
|
|
|
|
i3 = -1234567;
|
|
i4 = -5677334;
|
|
i1 = i3;
|
|
BOOST_TEST(i1 == -1234567);
|
|
i1 = i4;
|
|
BOOST_TEST(i1 == -5677334);
|
|
|
|
i3 = i2;
|
|
BOOST_TEST(i3 == 3);
|
|
|
|
i3 = -1234567;
|
|
|
|
uint128_t i5(i3);
|
|
BOOST_TEST(i5 == -1234567);
|
|
|
|
int128_t i6(i4);
|
|
BOOST_TEST(i6 == -5677334);
|
|
|
|
number<cpp_int_backend<32, 32, signed_magnitude, unchecked, void>, et_off> i7(i3);
|
|
BOOST_TEST(i7 == -1234567);
|
|
|
|
int256_t i8(i6);
|
|
BOOST_TEST(i8 == -5677334);
|
|
|
|
i7.assign(4.0);
|
|
BOOST_TEST(i7 == 4);
|
|
|
|
number<cpp_int_backend<30, 30, signed_magnitude, checked, void>, et_off> i9(-5677334);
|
|
i7 = i9;
|
|
BOOST_TEST(i7 == -5677334);
|
|
i7 = number<cpp_int_backend<32, 32, signed_magnitude, checked, void>, et_off>(i9);
|
|
BOOST_TEST(i7 == -5677334);
|
|
|
|
i9 = static_cast<number<cpp_int_backend<30, 30, signed_magnitude, checked, void>, et_off> >(i7);
|
|
BOOST_TEST(i9 == -5677334);
|
|
|
|
++i9;
|
|
i7 = i9;
|
|
BOOST_TEST(i7 == 1 - 5677334);
|
|
|
|
return boost::report_errors();
|
|
}
|