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119 lines
4.1 KiB
C++
119 lines
4.1 KiB
C++
// (C) Copyright John Maddock 2006.
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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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#include <boost/math/concepts/real_concept.hpp>
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#include <boost/test/included/test_exec_monitor.hpp>
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#include <boost/test/floating_point_comparison.hpp>
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#include <boost/math/special_functions/gamma.hpp>
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#include <boost/math/tools/stats.hpp>
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#include <boost/math/tools/test.hpp>
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#include <boost/array.hpp>
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#include <boost/lambda/lambda.hpp>
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#include <boost/lambda/bind.hpp>
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template <class T, class Seq>
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void print_test_result(const boost::math::tools::test_result<T>& result,
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const Seq& worst, int row, const char* name, const char* test)
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{
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using namespace std;
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T eps = pow(T(2), 1-boost::math::tools::digits<T>());
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std::cout << setprecision(4);
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std::cout << test << "(" << name << ") Max = " << (result.stat.max)()/eps
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<< " RMS Mean=" << result.stat.rms()/eps
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<< "\n worst case at row: "
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<< row << "\n { ";
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for(unsigned i = 0; i < worst.size(); ++i)
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{
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if(i)
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std::cout << ", ";
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std::cout << worst[i];
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}
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std::cout << " }" << std::endl;
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}
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template <class T>
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void do_test_tgamma_delta_ratio(const T& data, const char* type_name, const char* test_name)
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{
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typedef typename T::value_type row_type;
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typedef typename row_type::value_type value_type;
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typedef value_type (*pg)(value_type, value_type);
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pg funcp = boost::math::tgamma_delta_ratio;
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boost::math::tools::test_result<value_type> result;
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std::cout << "Testing " << test_name << " with type " << type_name
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<< "\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n";
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//
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// test tgamma_delta_ratio against data:
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//
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result = boost::math::tools::test(
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data,
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boost::lambda::bind(funcp,
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boost::lambda::ret<value_type>(boost::lambda::_1[0]),
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boost::lambda::ret<value_type>(boost::lambda::_1[1])),
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boost::lambda::ret<value_type>(boost::lambda::_1[2]));
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print_test_result(result, data[result.worst_case], result.worst_case, type_name, "boost::math::tgamma_delta_ratio(a, delta)");
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result = boost::math::tools::test(
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data,
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boost::lambda::bind(funcp,
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boost::lambda::ret<value_type>(boost::lambda::_1[0]),
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-boost::lambda::ret<value_type>(boost::lambda::_1[1])),
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boost::lambda::ret<value_type>(boost::lambda::_1[3]));
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print_test_result(result, data[result.worst_case], result.worst_case, type_name, "boost::math::tgamma_delta_ratio(a -delta)");
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}
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template <class T>
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void do_test_tgamma_ratio(const T& data, const char* type_name, const char* test_name)
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{
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typedef typename T::value_type row_type;
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typedef typename row_type::value_type value_type;
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typedef value_type (*pg)(value_type, value_type);
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pg funcp = boost::math::tgamma_ratio;
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boost::math::tools::test_result<value_type> result;
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std::cout << "Testing " << test_name << " with type " << type_name
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<< "\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n";
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//
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// test tgamma_ratio against data:
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//
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result = boost::math::tools::test(
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data,
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boost::lambda::bind(funcp,
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boost::lambda::ret<value_type>(boost::lambda::_1[0]),
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boost::lambda::ret<value_type>(boost::lambda::_1[1])),
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boost::lambda::ret<value_type>(boost::lambda::_1[2]));
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print_test_result(result, data[result.worst_case], result.worst_case, type_name, "boost::math::tgamma_ratio(a, b)");
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}
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template <class T>
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void test_tgamma_ratio(T, const char* name)
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{
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//
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// The actual test data is rather verbose, so it's in a separate file
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//
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# include "tgamma_delta_ratio_data.ipp"
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do_test_tgamma_delta_ratio(tgamma_delta_ratio_data, name, "tgamma ratios");
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# include "tgamma_ratio_data.ipp"
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do_test_tgamma_ratio(tgamma_ratio_data, name, "tgamma ratios");
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}
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int test_main(int, char* [])
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{
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test_tgamma_ratio(0.1F, "float");
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test_tgamma_ratio(0.1, "double");
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test_tgamma_ratio(0.1L, "long double");
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test_tgamma_ratio(boost::math::concepts::real_concept(0.1), "real_concept");
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return 0;
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}
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