| /* Boost test/pow.cpp |
| * test the pow function |
| * |
| * Copyright 2002-2003 Guillaume Melquiond |
| * |
| * Distributed under the Boost Software License, Version 1.0. |
| * (See accompanying file LICENSE_1_0.txt or |
| * copy at http://www.boost.org/LICENSE_1_0.txt) |
| */ |
| |
| #include <boost/numeric/interval.hpp> |
| #include <boost/test/minimal.hpp> |
| #include "bugs.hpp" |
| |
| bool test_pow(double al, double au, double bl, double bu, int p) { |
| typedef boost::numeric::interval<double> I; |
| I b = pow(I(al, au), p); |
| return b.lower() == bl && b.upper() == bu; |
| } |
| |
| int test_main(int, char *[]) { |
| BOOST_CHECK(test_pow(2, 3, 8, 27, 3)); |
| BOOST_CHECK(test_pow(2, 3, 16, 81, 4)); |
| BOOST_CHECK(test_pow(-3, 2, -27, 8, 3)); |
| BOOST_CHECK(test_pow(-3, 2, 0, 81, 4)); |
| BOOST_CHECK(test_pow(-3, -2, -27, -8, 3)); |
| BOOST_CHECK(test_pow(-3, -2, 16, 81, 4)); |
| |
| BOOST_CHECK(test_pow(2, 4, 1./64, 1./8, -3)); |
| BOOST_CHECK(test_pow(2, 4, 1./256, 1./16, -4)); |
| BOOST_CHECK(test_pow(-4, -2, -1./8, -1./64, -3)); |
| BOOST_CHECK(test_pow(-4, -2, 1./256, 1./16, -4)); |
| |
| BOOST_CHECK(test_pow(2, 3, 1, 1, 0)); |
| BOOST_CHECK(test_pow(-3, 2, 1, 1, 0)); |
| BOOST_CHECK(test_pow(-3, -2, 1, 1, 0)); |
| |
| # ifdef __BORLANDC__ |
| ::detail::ignore_warnings(); |
| # endif |
| return 0; |
| } |