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Diffstat (limited to 'src/boost/libs/math/test/test_beta.hpp')
| -rw-r--r-- | src/boost/libs/math/test/test_beta.hpp | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/src/boost/libs/math/test/test_beta.hpp b/src/boost/libs/math/test/test_beta.hpp new file mode 100644 index 00000000..f9c237d5 --- /dev/null +++ b/src/boost/libs/math/test/test_beta.hpp @@ -0,0 +1,103 @@ +// Copyright John Maddock 2006. +// Copyright Paul A. Bristow 2007, 2009 +// 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) + +#ifdef _MSC_VER +# pragma warning (disable : 4996) // POSIX name for this item is deprecated +# pragma warning (disable : 4224) // nonstandard extension used : formal parameter 'arg' was previously defined as a type +# pragma warning (disable : 4180) // qualifier applied to function type has no meaning; ignored +#endif + +#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 <boost/math/tools/stats.hpp> +#include <boost/math/tools/test.hpp> +#include <boost/math/constants/constants.hpp> +#include <boost/type_traits/is_floating_point.hpp> +#include <boost/array.hpp> +#include "functor.hpp" + +#include "handle_test_result.hpp" +#include "table_type.hpp" + +#undef small // VC++ #defines small char !!!!!! + +#ifndef SC_ +#define SC_(x) static_cast<typename table_type<T>::type>(BOOST_JOIN(x, L)) +#endif + +template <class Real, class T> +void do_test_beta(const T& data, const char* type_name, const char* test_name) +{ +#if !(defined(ERROR_REPORTING_MODE) && !defined(BETA_FUNCTION_TO_TEST)) + typedef Real value_type; + + typedef value_type (*pg)(value_type, value_type); +#ifdef BETA_FUNCTION_TO_TEST + pg funcp = BETA_FUNCTION_TO_TEST; +#elif defined(BOOST_MATH_NO_DEDUCED_FUNCTION_POINTERS) + pg funcp = boost::math::beta<value_type, value_type>; +#else + pg funcp = boost::math::beta; +#endif + + boost::math::tools::test_result<value_type> result; + + std::cout << "Testing " << test_name << " with type " << type_name + << "\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n"; + + // + // test beta against data: + // + result = boost::math::tools::test_hetero<Real>( + data, + bind_func<Real>(funcp, 0, 1), + extract_result<Real>(2)); + handle_test_result(result, data[result.worst()], result.worst(), type_name, "beta", test_name); + std::cout << std::endl; +#endif +} +template <class T> +void test_beta(T, const char* name) +{ + // + // The actual test data is rather verbose, so it's in a separate file + // + // The contents are as follows, each row of data contains + // three items, input value a, input value b and beta(a, b): + // +# include "beta_small_data.ipp" + + do_test_beta<T>(beta_small_data, name, "Beta Function: Small Values"); + +# include "beta_med_data.ipp" + + do_test_beta<T>(beta_med_data, name, "Beta Function: Medium Values"); + +# include "beta_exp_data.ipp" + + do_test_beta<T>(beta_exp_data, name, "Beta Function: Divergent Values"); +} + +template <class T> +void test_spots(T) +{ + // + // Basic sanity checks, tolerance is 20 epsilon expressed as a percentage: + // + T tolerance = boost::math::tools::epsilon<T>() * 20 * 100; + T small = boost::math::tools::epsilon<T>() / 1024; + BOOST_CHECK_CLOSE(::boost::math::beta(static_cast<T>(1), static_cast<T>(1)), static_cast<T>(1), tolerance); + BOOST_CHECK_CLOSE(::boost::math::beta(static_cast<T>(1), static_cast<T>(4)), static_cast<T>(0.25), tolerance); + BOOST_CHECK_CLOSE(::boost::math::beta(static_cast<T>(4), static_cast<T>(1)), static_cast<T>(0.25), tolerance); + BOOST_CHECK_CLOSE(::boost::math::beta(small, static_cast<T>(4)), 1/small, tolerance); + BOOST_CHECK_CLOSE(::boost::math::beta(static_cast<T>(4), small), 1/small, tolerance); + BOOST_CHECK_CLOSE(::boost::math::beta(static_cast<T>(4), static_cast<T>(20)), static_cast<T>(0.00002823263692828910220214568040654997176736L), tolerance); + BOOST_CHECK_CLOSE(::boost::math::beta(static_cast<T>(0.0125L), static_cast<T>(0.000023L)), static_cast<T>(43558.24045647538375006349016083320744662L), tolerance * 2); +} + |