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- ///////////////////////////////////////////////////////////////
- // 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
- //
- // Compare arithmetic results using fixed_int to GMP results.
- //
- #ifdef _MSC_VER
- #define _SCL_SECURE_NO_WARNINGS
- #endif
- #ifdef TEST_GMP
- #include <boost/multiprecision/gmp.hpp>
- #endif
- #ifdef TEST_MPFR
- #include <boost/multiprecision/mpfr.hpp>
- #endif
- #include <boost/multiprecision/cpp_dec_float.hpp>
- #include "test.hpp"
- template <class Number, class BigNumber>
- void test()
- {
- using namespace boost::multiprecision;
- typedef Number test_type;
- test_type a = 1;
- a /= 3;
- test_type b = -a;
- BigNumber r;
- BOOST_CHECK_EQUAL(add(r, a, a), BigNumber(a) + BigNumber(a));
- BOOST_CHECK_EQUAL(subtract(r, a, b), BigNumber(a) - BigNumber(b));
- BOOST_CHECK_EQUAL(subtract(r, b, a), BigNumber(b) - BigNumber(a));
- BOOST_CHECK_EQUAL(multiply(r, a, a), BigNumber(a) * BigNumber(a));
- }
- int main()
- {
- using namespace boost::multiprecision;
- test<cpp_dec_float_50, cpp_dec_float_100>();
- #ifdef TEST_GMP
- test<mpf_float_50, mpf_float_100>();
- #endif
- #ifdef TEST_MPFR
- test<mpfr_float_50, mpfr_float_100>();
- #endif
- return boost::report_errors();
- }
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