| // Copyright John Maddock 2006. |
| // Copyright Paul A. Bristow 2007. |
| |
| // 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) |
| |
| // test_dist_overloads.cpp |
| |
| #include <boost/math/concepts/real_concept.hpp> // for real_concept |
| #include <boost/math/distributions/normal.hpp> |
| using boost::math::normal_distribution; |
| |
| #include <boost/test/test_exec_monitor.hpp> // Boost.Test |
| #include <boost/test/floating_point_comparison.hpp> |
| |
| #include <iostream> |
| using std::cout; |
| using std::endl; |
| using std::setprecision; |
| |
| template <class RealType> |
| void test_spots(RealType) |
| { |
| // Basic sanity checks, |
| // 2 eps as a percentage: |
| RealType tolerance = boost::math::tools::epsilon<RealType>() * 2 * 100; |
| |
| cout << "Tolerance for type " << typeid(RealType).name() << " is " << tolerance << " %" << endl; |
| |
| for(int i = -4; i <= 4; ++i) |
| { |
| BOOST_CHECK_CLOSE( |
| ::boost::math::cdf(normal_distribution<RealType>(), i), |
| ::boost::math::cdf(normal_distribution<RealType>(), static_cast<RealType>(i)), |
| tolerance); |
| BOOST_CHECK_CLOSE( |
| ::boost::math::pdf(normal_distribution<RealType>(), i), |
| ::boost::math::pdf(normal_distribution<RealType>(), static_cast<RealType>(i)), |
| tolerance); |
| BOOST_CHECK_CLOSE( |
| ::boost::math::cdf(complement(normal_distribution<RealType>(), i)), |
| ::boost::math::cdf(complement(normal_distribution<RealType>(), static_cast<RealType>(i))), |
| tolerance); |
| BOOST_CHECK_CLOSE( |
| ::boost::math::hazard(normal_distribution<RealType>(), i), |
| ::boost::math::hazard(normal_distribution<RealType>(), static_cast<RealType>(i)), |
| tolerance); |
| BOOST_CHECK_CLOSE( |
| ::boost::math::chf(normal_distribution<RealType>(), i), |
| ::boost::math::chf(normal_distribution<RealType>(), static_cast<RealType>(i)), |
| tolerance); |
| } |
| for(float f = 0.01f; f < 1; f += 0.01f) |
| { |
| BOOST_CHECK_CLOSE( |
| ::boost::math::quantile(normal_distribution<RealType>(), f), |
| ::boost::math::quantile(normal_distribution<RealType>(), static_cast<RealType>(f)), |
| tolerance); |
| BOOST_CHECK_CLOSE( |
| ::boost::math::quantile(complement(normal_distribution<RealType>(), f)), |
| ::boost::math::quantile(complement(normal_distribution<RealType>(), static_cast<RealType>(f))), |
| tolerance); |
| } |
| } // template <class RealType>void test_spots(RealType) |
| |
| int test_main(int, char* []) |
| { |
| // Basic sanity-check spot values. |
| // (Parameter value, arbitrarily zero, only communicates the floating point type). |
| test_spots(0.0F); // Test float. OK at decdigits = 0 tolerance = 0.0001 % |
| test_spots(0.0); // Test double. OK at decdigits 7, tolerance = 1e07 % |
| #ifndef BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS |
| test_spots(0.0L); // Test long double. |
| #if !BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x582)) |
| test_spots(boost::math::concepts::real_concept(0.)); // Test 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::cout; |
| #endif |
| |
| return 0; |
| } // int test_main(int, char* []) |
| |
| /* |
| |
| Output: |
| |
| Running 1 test case... |
| Tolerance for type float is 2.38419e-005 % |
| Tolerance for type double is 4.44089e-014 % |
| Tolerance for type long double is 4.44089e-014 % |
| Tolerance for type class boost::math::concepts::real_concept is 4.44089e-014 % |
| *** No errors detected |
| |
| */ |
| |