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78 lines
3.7 KiB
C++
78 lines
3.7 KiB
C++
// Copyright John Maddock 2015.
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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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#ifdef _MSC_VER
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# pragma warning (disable : 4224)
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#endif
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#include <boost/math/special_functions/log1p.hpp>
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#include <boost/array.hpp>
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#include <boost/lexical_cast.hpp>
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#include "../../test/table_type.hpp"
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#include "table_helper.hpp"
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#include "performance.hpp"
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#include <iostream>
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int main()
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{
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typedef double T;
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#define SC_(x) static_cast<double>(x)
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# include "../../test/log1p_expm1_data.ipp"
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add_data(log1p_expm1_data);
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unsigned data_total = data.size();
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screen_data([](const std::vector<double>& v){ return boost::math::log1p(v[0]); }, [](const std::vector<double>& v){ return v[1]; });
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#if defined(TEST_C99) && !defined(COMPILER_COMPARISON_TABLES)
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screen_data([](const std::vector<double>& v){ return ::log1p(v[0]); }, [](const std::vector<double>& v){ return v[1]; });
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#endif
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#ifdef TEST_LIBSTDCXX && !defined(COMPILER_COMPARISON_TABLES)
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screen_data([](const std::vector<double>& v){ return std::tr1::log1p(v[0]); }, [](const std::vector<double>& v){ return v[1]; });
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#endif
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unsigned data_used = data.size();
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std::string function = "log1p[br](" + boost::lexical_cast<std::string>(data_used)+"/" + boost::lexical_cast<std::string>(data_total)+" tests selected)";
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std::string function_short = "log1p";
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double time = exec_timed_test([](const std::vector<double>& v){ return boost::math::log1p(v[0]); });
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std::cout << time << std::endl;
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#if !defined(COMPILER_COMPARISON_TABLES) && (defined(TEST_GSL) || defined(TEST_RMATH) || defined(TEST_C99) || defined(TEST_LIBSTDCXX))
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report_execution_time(time, std::string("Library Comparison with ") + std::string(compiler_name()) + std::string(" on ") + platform_name(), function, boost_name());
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#endif
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report_execution_time(time, std::string("Compiler Comparison on ") + std::string(platform_name()), function_short, compiler_name() + std::string("[br]") + boost_name());
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//
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// Boost again, but with promotion to long double turned off:
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//
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#if !defined(COMPILER_COMPARISON_TABLES)
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if(sizeof(long double) != sizeof(double))
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{
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double time = exec_timed_test([](const std::vector<double>& v){ return boost::math::log1p(v[0], boost::math::policies::make_policy(boost::math::policies::promote_double<false>())); });
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std::cout << time << std::endl;
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#if !defined(COMPILER_COMPARISON_TABLES) && (defined(TEST_GSL) || defined(TEST_RMATH) || defined(TEST_C99) || defined(TEST_LIBSTDCXX))
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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>");
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#endif
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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>");
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}
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#endif
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#if defined(TEST_C99) && !defined(COMPILER_COMPARISON_TABLES)
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time = exec_timed_test([](const std::vector<double>& v){ return ::log1p(v[0]); });
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std::cout << time << std::endl;
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report_execution_time(time, std::string("Library Comparison with ") + std::string(compiler_name()) + std::string(" on ") + platform_name(), function, "math.h");
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#endif
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#if defined(TEST_LIBSTDCXX) && !defined(COMPILER_COMPARISON_TABLES)
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time = exec_timed_test([](const std::vector<double>& v){ return std::tr1::log1p(v[0]); });
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std::cout << time << std::endl;
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report_execution_time(time, std::string("Library Comparison with ") + std::string(compiler_name()) + std::string(" on ") + platform_name(), function, "tr1/cmath");
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#endif
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return 0;
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}
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