int main() { #include "ellint_e2_data.ipp" add_data(data1); add_data(ellint_e2_data); unsigned data_total = data.size(); screen_data([](const std::vector<double>& v){ return boost::math::ellint_2(v[1], v[0]); }, [](const std::vector<double>& v){ return v[2]; }); #if defined(TEST_LIBSTDCXX) && !defined(COMPILER_COMPARISON_TABLES) screen_data([](const std::vector<double>& v){ return std::tr1::ellint_2(v[1], v[0]); }, [](const std::vector<double>& v){ return v[2]; }); #endif #if defined(TEST_GSL) && !defined(COMPILER_COMPARISON_TABLES) screen_data([](const std::vector<double>& v){ return gsl_sf_ellint_E(v[0], v[1], GSL_PREC_DOUBLE); }, [](const std::vector<double>& v){ return v[2]; }); #endif unsigned data_used = data.size(); std::string function = "ellint_2[br](" + boost::lexical_cast<std::string>(data_used) + "/" + boost::lexical_cast<std::string>(data_total) + " tests selected)"; std::string function_short = "ellint_2"; double time; time = exec_timed_test([](const std::vector<double>& v){ return boost::math::ellint_2(v[1], v[0]); }); std::cout << time << std::endl; #if !defined(COMPILER_COMPARISON_TABLES) && (defined(TEST_GSL) || defined(TEST_RMATH) || defined(TEST_LIBSTDCXX)) report_execution_time(time, std::string("Library Comparison with ") + std::string(compiler_name()) + std::string(" on ") + platform_name(), function, boost_name()); #endif report_execution_time(time, std::string("Compiler Comparison on ") + std::string(platform_name()), function_short, compiler_name() + std::string("[br]") + boost_name()); // // Boost again, but with promotion to long double turned off: // #if !defined(COMPILER_COMPARISON_TABLES) if(sizeof(long double) != sizeof(double)) { time = exec_timed_test([](const std::vector<double>& v){ return boost::math::ellint_2(v[1], v[0], boost::math::policies::make_policy(boost::math::policies::promote_double<false>())); }); std::cout << time << std::endl; #if !defined(COMPILER_COMPARISON_TABLES) && (defined(TEST_GSL) || defined(TEST_RMATH) || defined(TEST_LIBSTDCXX)) report_execution_time(time, std::string("Library Comparison with ") + std::string(compiler_name()) + std::string(" on ") + platform_name(), function, boost_name() + "[br]promote_double<false>"); #endif report_execution_time(time, std::string("Compiler Comparison on ") + std::string(platform_name()), function_short, compiler_name() + std::string("[br]") + boost_name() + "[br]promote_double<false>"); } #endif #if defined(TEST_LIBSTDCXX) && !defined(COMPILER_COMPARISON_TABLES) time = exec_timed_test([](const std::vector<double>& v){ return std::tr1::ellint_2(v[1], v[0]); }); std::cout << time << std::endl; report_execution_time(time, std::string("Library Comparison with ") + std::string(compiler_name()) + std::string(" on ") + platform_name(), function, "tr1/cmath"); #endif #if defined(TEST_GSL) && !defined(COMPILER_COMPARISON_TABLES) time = exec_timed_test([](const std::vector<double>& v){ return gsl_sf_ellint_E(v[0], v[1], GSL_PREC_DOUBLE); }); std::cout << time << std::endl; report_execution_time(time, std::string("Library Comparison with ") + std::string(compiler_name()) + std::string(" on ") + platform_name(), function, "GSL " GSL_VERSION); #endif return 0; }
/** * C++ version of gsl_sf_ellint_E(). * E(phi,k) = Integral[ Sqrt[1 - k^2 Sin[t]^2], {t, 0, phi}] * @param phi A real number * @param k A real number * @param mode The mode * @return The function value */ inline double E( double phi, double k, mode_t mode ){ return gsl_sf_ellint_E( phi, k, mode ); }