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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 18:24:20 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 18:24:20 +0000
commit483eb2f56657e8e7f419ab1a4fab8dce9ade8609 (patch)
treee5d88d25d870d5dedacb6bbdbe2a966086a0a5cf /src/boost/libs/math/test/log1p_expm1_test.cpp
parentInitial commit. (diff)
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Adding upstream version 14.2.21.upstream/14.2.21upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/boost/libs/math/test/log1p_expm1_test.cpp')
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diff --git a/src/boost/libs/math/test/log1p_expm1_test.cpp b/src/boost/libs/math/test/log1p_expm1_test.cpp
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+// Copyright John Maddock 2005.
+// Copyright Paul A. Bristow 2010
+// 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 <pch_light.hpp>
+
+// Requires MS extensions permitted or fails to link.
+
+
+#define BOOST_MATH_OVERFLOW_ERROR_POLICY ignore_error
+
+#include <boost/math/concepts/real_concept.hpp>
+#define BOOST_TEST_MAIN
+#include <boost/test/unit_test.hpp>
+#include <boost/test/tools/floating_point_comparison.hpp>
+#include <boost/math/special_functions/math_fwd.hpp>
+#include "log1p_expm1_test.hpp"
+
+//
+// DESCRIPTION:
+// ~~~~~~~~~~~~
+//
+// This file tests the functions log1p and expm1. 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.
+ //
+
+ //
+ // Catch all cases come last:
+ //
+ add_expected_result(
+ ".*", // compiler
+ ".*", // stdlib
+ ".*", // platform
+ ".*", // test type(s)
+ ".*", // test data group
+ ".*", // test function
+ 4, // Max Peek error
+ 3); // Max mean error
+
+ //
+ // 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;
+ test(float(0), "float");
+ test(double(0), "double");
+ //
+ // The long double version of these tests fails on some platforms
+ // due to poor std lib support (not enough digits returned from
+ // std::log and std::exp):
+ //
+#if !defined(BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS)
+ test((long double)(0), "long double");
+#ifndef BOOST_MATH_NO_REAL_CONCEPT_TESTS
+ test((boost::math::concepts::real_concept)(0), "real_concept");
+#endif
+#else
+ std::cout << "<note>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.</note>" << std::endl;
+#endif
+}
+