From 483eb2f56657e8e7f419ab1a4fab8dce9ade8609 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 20:24:20 +0200 Subject: Adding upstream version 14.2.21. Signed-off-by: Daniel Baumann --- src/boost/libs/math/test/test_igamma.cpp | 377 +++++++++++++++++++++++++++++++ 1 file changed, 377 insertions(+) create mode 100644 src/boost/libs/math/test/test_igamma.cpp (limited to 'src/boost/libs/math/test/test_igamma.cpp') diff --git a/src/boost/libs/math/test/test_igamma.cpp b/src/boost/libs/math/test/test_igamma.cpp new file mode 100644 index 00000000..c016603d --- /dev/null +++ b/src/boost/libs/math/test/test_igamma.cpp @@ -0,0 +1,377 @@ +// (C) Copyright John Maddock 2006. +// Use, modification and distribution are subject to 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 +#include "test_igamma.hpp" + +// +// DESCRIPTION: +// ~~~~~~~~~~~~ +// +// This file tests the incomplete gamma functions tgamma, +// tgamma_lower, gamma_p and gamma_q. There are two sets of tests, spot +// tests which compare our results with selected values computed +// using the online special function calculator at +// functions.wolfram.com, while the bulk of the accuracy tests +// use values generated with NTL::RR at 1000-bit precision +// and our generic versions of these functions. +// +// Note that when this file is first run on a new platform many of +// these tests will fail: the default accuracy is 1 epsilon which +// is too tight for most platforms. In this situation you will +// need to cast a human eye over the error rates reported and make +// a judgement as to whether they are acceptable. Either way please +// report the results to the Boost mailing list. Acceptable rates of +// error are marked up below as a series of regular expressions that +// identify the compiler/stdlib/platform/data-type/test-data/test-function +// along with the maximum expected peek and RMS mean errors for that +// test. +// + +void expected_results() +{ + // + // Define the max and mean errors expected for + // various compilers and platforms. + // + const char* largest_type; +#ifndef BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS + if(boost::math::policies::digits >() == boost::math::policies::digits >()) + { + largest_type = "(long\\s+)?double"; + } + else + { + largest_type = "long double"; + } +#else + largest_type = "(long\\s+)?double"; +#endif + // + // Linux: + // + // These should not really be needed, but on *some* Linux + // versions these error rates are quite large and appear to + // be related to the accuracy of powl and expl. On Itanium + // or Xeon machines the error rates are much lower than this. + // Worst cases appear to be AMD64 machines. + // + add_expected_result( + "[^|]*", // compiler + "[^|]*", // stdlib + "linux", // platform + largest_type, // test type(s) + "[^|]*medium[^|]*", // test data group + "[^|]*", 1300, 200); // test function + add_expected_result( + "[^|]*", // compiler + "[^|]*", // stdlib + ".*Solaris.*", // platform + "real_concept", // test type(s) + "[^|]*medium[^|]*", // test data group + "[^|]*", 1000, 200); // test function + add_expected_result( + "[^|]*", // compiler + "[^|]*", // stdlib + "linux", // platform + largest_type, // test type(s) + "[^|]*integer[^|]*", // test data group + "[^|]*", 1300, 200); // test function + add_expected_result( + "[^|]*", // compiler + "[^|]*", // stdlib + "linux", // platform + "real_concept", // test type(s) + "[^|]*medium[^|]*", // test data group + "[^|]*", 1300, 200); // test function + add_expected_result( + "[^|]*", // compiler + "[^|]*", // stdlib + "linux", // platform + "real_concept", // test type(s) + "[^|]*integer[^|]*", // test data group + "[^|]*", 600, 200); // test function + + // + // Mac OS X: + // It's not clear why these should be required, but see notes above + // about Linux. + // + add_expected_result( + "[^|]*", // compiler + "[^|]*", // stdlib + "Mac OS", // platform + largest_type, // test type(s) + "[^|]*medium[^|]*", // test data group + "[^|]*", 5000, 1000); // test function + add_expected_result( + "[^|]*", // compiler + "[^|]*", // stdlib + "Mac OS", // platform + largest_type, // test type(s) + "[^|]*small[^|]*", // test data group + "[^|]*", 80, 40); // test function + add_expected_result( + "[^|]*", // compiler + "[^|]*", // stdlib + "Mac OS", // platform + largest_type, // test type(s) + "[^|]*integer[^|]*", // test data group + "[^|]*", 2000, 300); // test function + add_expected_result( + "[^|]*", // compiler + "[^|]*", // stdlib + "Mac OS", // platform + "real_concept", // test type(s) + "[^|]*medium[^|]*", // test data group + "[^|]*", 5000, 1000); // test function + add_expected_result( + "[^|]*", // compiler + "[^|]*", // stdlib + "Mac OS", // platform + "real_concept", // test type(s) + "[^|]*small[^|]*", // test data group + "[^|]*", 75, 15); // test function + add_expected_result( + "[^|]*", // compiler + "[^|]*", // stdlib + "Mac OS", // platform + "real_concept", // test type(s) + "[^|]*integer[^|]*", // test data group + "[^|]*", 2000, 300); // test function + // + // HP-UX: + // + add_expected_result( + "[^|]*", // compiler + "[^|]*", // stdlib + "HP-UX", // platform + largest_type, // test type(s) + "[^|]*medium[^|]*", // test data group + "[^|]*", 500, 50); // test function + add_expected_result( + "[^|]*", // compiler + "[^|]*", // stdlib + "HP-UX", // platform + "real_concept", // test type(s) + "[^|]*medium[^|]*", // test data group + "[^|]*", 500, 100); // test function + // + // Sun OS: + // + add_expected_result( + "[^|]*", // compiler + "[^|]*", // stdlib + "Sun.*", // platform + largest_type, // test type(s) + "[^|]*medium[^|]*", // test data group + "[^|]*", 500, 100); // test function + add_expected_result( + "[^|]*", // compiler + "[^|]*", // stdlib + "Sun.*", // platform + largest_type, // test type(s) + "[^|]*integer[^|]*", // test data group + "[^|]*", 100, 30); // test function + add_expected_result( + "[^|]*", // compiler + "[^|]*", // stdlib + "Sun.*", // platform + "real_concept", // test type(s) + "[^|]*medium[^|]*", // test data group + "[^|]*", 500, 100); // test function + add_expected_result( + "[^|]*", // compiler + "[^|]*", // stdlib + "Sun.*", // platform + "real_concept", // test type(s) + "[^|]*integer[^|]*", // test data group + "[^|]*", 100, 30); // test function + + // + // Mac OS X: + // + add_expected_result( + "[^|]*", // compiler + "[^|]*", // stdlib + "Mac OS", // platform + largest_type, // test type(s) + "[^|]*medium[^|]*", // test data group + "[^|]*", 100, 50); // test function + + // + // Minw: + // + add_expected_result( + "GNU[^|]*", // compiler + "[^|]*", // stdlib + "Win32[^|]*", // platform + "real_concept", // test type(s) + "[^|]*medium[^|]*", // test data group + "[^|]*", 1300, 200); // test function + add_expected_result( + "GNU[^|]*", // compiler + "[^|]*", // stdlib + "Win32[^|]*", // platform + largest_type, // test type(s) + "[^|]*medium[^|]*", // test data group + "[^|]*", 700, 200); // test function + add_expected_result( + "GNU[^|]*", // compiler + "[^|]*", // stdlib + "Win32[^|]*", // platform + largest_type, // test type(s) + "[^|]*small[^|]*", // test data group + "[^|]*", 100, 50); // test function + add_expected_result( + "GNU[^|]*", // compiler + "[^|]*", // stdlib + "Win32[^|]*", // platform + largest_type, // test type(s) + "[^|]*integer[^|]*", // test data group + ".*", 120, 50); // test function + add_expected_result( + "GNU[^|]*", // compiler + "[^|]*", // stdlib + "Win32[^|]*", // platform + "real_concept", // test type(s) + "[^|]*integer[^|]*", // test data group + ".*", 100, 50); // test function + + // + // Large exponent range causes more extreme test cases to be evaluated: + // + if(std::numeric_limits::max_exponent > std::numeric_limits::max_exponent) + { + add_expected_result( + "[^|]*", // compiler + "[^|]*", // stdlib + "[^|]*", // platform + largest_type, // test type(s) + "[^|]*large[^|]*", // test data group + ".*", 40000, 3000); // test function + } + + + // + // Catch all cases come last: + // + add_expected_result( + "[^|]*", // compiler + "[^|]*", // stdlib + "[^|]*", // platform + largest_type, // test type(s) + "[^|]*medium[^|]*", // test data group + "[^|]*", 50, 20); // test function + add_expected_result( + "[^|]*", // compiler + "[^|]*", // stdlib + "[^|]*", // platform + largest_type, // test type(s) + "[^|]*small[^|]*", // test data group + "[^|]*", 20, 10); // test function + add_expected_result( + "[^|]*", // compiler + "[^|]*", // stdlib + "[^|]*", // platform + largest_type, // test type(s) + "[^|]*large[^|]*", // test data group + "gamma_q", 500, 50); // test function + add_expected_result( + "[^|]*", // compiler + "[^|]*", // stdlib + "Cygwin", // platform + largest_type, // test type(s) + "[^|]*large[^|]*", // test data group + "gamma_p", 700, 50); // test function + add_expected_result( + "[^|]*", // compiler + "[^|]*", // stdlib + "[^|]*", // platform + largest_type, // test type(s) + "[^|]*large[^|]*", // test data group + "gamma_p", 350, 50); // test function + add_expected_result( + "[^|]*", // compiler + "[^|]*", // stdlib + "[^|]*", // platform + largest_type, // test type(s) + "[^|]*integer[^|]*", // test data group + ".*", 20, 10); // test function + add_expected_result( + "[^|]*", // compiler + "[^|]*", // stdlib + "[^|]*", // platform + "real_concept", // test type(s) + "[^|]*medium[^|]*", // test data group + "[^|]*", 1500, 400); // test function + add_expected_result( + "[^|]*", // compiler + "[^|]*", // stdlib + "[^|]*", // platform + "real_concept", // test type(s) + "[^|]*small[^|]*", // test data group + ".*", 100, 20); // test function + add_expected_result( + "[^|]*", // compiler + "[^|]*", // stdlib + "[^|]*", // platform + "real_concept", // test type(s) + "[^|]*large[^|]*", // test data group + ".*", 1000000, 100000); // test function + add_expected_result( + "[^|]*", // compiler + "[^|]*", // stdlib + "[^|]*", // platform + "real_concept", // test type(s) + "[^|]*integer[^|]*", // test data group + ".*", 200, 40); // test function + + // + // Finish off by printing out the compiler/stdlib/platform names, + // we do this to make it easier to mark up expected error rates. + // + std::cout << "Tests run with " << BOOST_COMPILER << ", " + << BOOST_STDLIB << ", " << BOOST_PLATFORM << std::endl; +} + +BOOST_AUTO_TEST_CASE( test_main ) +{ + expected_results(); + BOOST_MATH_CONTROL_FP; + +#ifndef BOOST_MATH_BUGGY_LARGE_FLOAT_CONSTANTS + test_spots(0.0F); +#endif + test_spots(0.0); +#ifndef BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS + test_spots(0.0L); +#ifndef BOOST_MATH_NO_REAL_CONCEPT_TESTS + test_spots(boost::math::concepts::real_concept(0.1)); +#endif +#endif + +#ifndef BOOST_MATH_BUGGY_LARGE_FLOAT_CONSTANTS + test_gamma(0.1F, "float"); +#endif + test_gamma(0.1, "double"); +#ifndef BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS + test_gamma(0.1L, "long double"); +#ifndef BOOST_MATH_NO_REAL_CONCEPT_TESTS +#if !BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x582)) + test_gamma(boost::math::concepts::real_concept(0.1), "real_concept"); +#endif +#endif +#else + std::cout << "The long double tests have been disabled on this platform " + "either because the long double overloads of the usual math functions are " + "not available at all, or because they are too inaccurate for these tests " + "to pass." << std::endl; +#endif + +} + + + -- cgit v1.2.3