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45 lines
1.4 KiB
C++
45 lines
1.4 KiB
C++
/* Boost test/pow.cpp
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* test the pow function
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*
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* Copyright Guillaume Melquiond 2002-2003
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* Permission to use, copy, modify, sell, and distribute this software
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* is hereby granted without fee provided that the above copyright notice
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* appears in all copies and that both that copyright notice and this
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* permission notice appear in supporting documentation.
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*
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* None of the above authors nor Polytechnic University make any
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* representation about the suitability of this software for any
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* purpose. It is provided "as is" without express or implied warranty.
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*
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* $Id$
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*/
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#include <boost/numeric/interval.hpp>
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#include <boost/test/minimal.hpp>
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bool test_pow(double al, double au, double bl, double bu, int p) {
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typedef boost::numeric::interval<double> I;
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I b = pow(I(al, au), p);
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return b.lower() == bl && b.upper() == bu;
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}
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int test_main(int, char *[]) {
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BOOST_TEST(test_pow(2, 3, 8, 27, 3));
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BOOST_TEST(test_pow(2, 3, 16, 81, 4));
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BOOST_TEST(test_pow(-3, 2, -27, 8, 3));
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BOOST_TEST(test_pow(-3, 2, 0, 81, 4));
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BOOST_TEST(test_pow(-3, -2, -27, -8, 3));
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BOOST_TEST(test_pow(-3, -2, 16, 81, 4));
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BOOST_TEST(test_pow(2, 4, 1./64, 1./8, -3));
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BOOST_TEST(test_pow(2, 4, 1./256, 1./16, -4));
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BOOST_TEST(test_pow(-4, -2, -1./8, -1./64, -3));
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BOOST_TEST(test_pow(-4, -2, 1./256, 1./16, -4));
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BOOST_TEST(test_pow(2, 3, 1, 1, 0));
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BOOST_TEST(test_pow(-3, 2, 1, 1, 0));
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BOOST_TEST(test_pow(-3, -2, 1, 1, 0));
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return 0;
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}
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