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93 lines
3.2 KiB
C++
93 lines
3.2 KiB
C++
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// Copyright John Maddock 2006.
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// Copyright Paul A. Bristow 2010
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// Use, modification and distribution are subject to the
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// Boost Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#ifdef _MSC_VER
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# pragma warning (disable : 4224)
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#endif
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#include <pch_light.hpp> // include /libs/math/src/
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#include "test_cbrt.hpp"
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#include <boost/math/special_functions/cbrt.hpp> // Added to avoid link failure missing cbrt variants.
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// Assumes special functions library built rather than included?
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//
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// DESCRIPTION:
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// ~~~~~~~~~~~~
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//
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// This file tests the function cbrt. The accuracy tests
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// use values generated with NTL::RR at 1000-bit precision
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// and our generic versions of these functions.
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//
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// Note that when this file is first run on a new platform many of
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// these tests will fail: the default accuracy is 1 epsilon which
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// is too tight for most platforms. In this situation you will
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// need to cast a human eye over the error rates reported and make
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// a judgement as to whether they are acceptable. Either way please
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// report the results to the Boost mailing list. Acceptable rates of
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// error are marked up below as a series of regular expressions that
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// identify the compiler/stdlib/platform/data-type/test-data/test-function
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// along with the maximum expected peek and RMS mean errors for that
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// test.
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//
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void expected_results()
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{
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//
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// Define the max and mean errors expected for
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// various compilers and platforms.
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//
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const char* largest_type;
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#ifndef BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS
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if(boost::math::policies::digits<double, boost::math::policies::policy<> >() == boost::math::policies::digits<long double, boost::math::policies::policy<> >())
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{
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largest_type = "(long\\s+)?double|real_concept";
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}
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else
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{
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largest_type = "long double|real_concept";
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}
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#else
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largest_type = "(long\\s+)?double|real_concept";
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#endif
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add_expected_result(
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"Borland.*", // compiler
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".*", // stdlib
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".*", // platform
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"long double", // test type(s)
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".*", // test data group
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".*", 10, 6); // test function
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add_expected_result(
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".*", // compiler
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".*", // stdlib
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".*", // platform
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largest_type, // test type(s)
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".*", // test data group
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".*", 2, 2); // test function
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//
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// Finish off by printing out the compiler/stdlib/platform names,
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// we do this to make it easier to mark up expected error rates.
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//
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std::cout << "Tests run with " << BOOST_COMPILER << ", "
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<< BOOST_STDLIB << ", " << BOOST_PLATFORM << std::endl;
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}
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BOOST_AUTO_TEST_CASE( test_main )
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{
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expected_results();
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BOOST_MATH_CONTROL_FP;
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test_cbrt(0.1F, "float");
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test_cbrt(0.1, "double");
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#ifndef BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS
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test_cbrt(0.1L, "long double");
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#ifndef BOOST_MATH_NO_REAL_CONCEPT_TESTS
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test_cbrt(boost::math::concepts::real_concept(0.1), "real_concept");
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#endif
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#endif
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}
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