1 // Copyright John Maddock 2015.
2 // Use, modification and distribution are subject to the
3 // Boost Software License, Version 1.0. (See accompanying file
4 // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
5
6 #ifdef _MSC_VER
7 # pragma warning (disable : 4224)
8 #endif
9
10 #include <boost/math/special_functions/log1p.hpp>
11 #include <boost/array.hpp>
12 #include <boost/lexical_cast.hpp>
13 #include "../../test/table_type.hpp"
14 #include "table_helper.hpp"
15 #include "performance.hpp"
16 #include <iostream>
17
main()18 int main()
19 {
20 typedef double T;
21 #define SC_(x) static_cast<double>(x)
22 # include "../../test/log1p_expm1_data.ipp"
23
24 add_data(log1p_expm1_data);
25
26 unsigned data_total = data.size();
27
28 screen_data([](const std::vector<double>& v){ return boost::math::log1p(v[0]); }, [](const std::vector<double>& v){ return v[1]; });
29
30 #if defined(TEST_C99) && !defined(COMPILER_COMPARISON_TABLES)
31 screen_data([](const std::vector<double>& v){ return ::log1p(v[0]); }, [](const std::vector<double>& v){ return v[1]; });
32 #endif
33 #ifdef TEST_LIBSTDCXX && !defined(COMPILER_COMPARISON_TABLES)
34 screen_data([](const std::vector<double>& v){ return std::tr1::log1p(v[0]); }, [](const std::vector<double>& v){ return v[1]; });
35 #endif
36
37 unsigned data_used = data.size();
38 std::string function = "log1p[br](" + boost::lexical_cast<std::string>(data_used)+"/" + boost::lexical_cast<std::string>(data_total)+" tests selected)";
39 std::string function_short = "log1p";
40
41 double time = exec_timed_test([](const std::vector<double>& v){ return boost::math::log1p(v[0]); });
42 std::cout << time << std::endl;
43 #if !defined(COMPILER_COMPARISON_TABLES) && (defined(TEST_GSL) || defined(TEST_RMATH) || defined(TEST_C99) || defined(TEST_LIBSTDCXX))
44 report_execution_time(time, std::string("Library Comparison with ") + std::string(compiler_name()) + std::string(" on ") + platform_name(), function, boost_name());
45 #endif
46 report_execution_time(time, std::string("Compiler Comparison on ") + std::string(platform_name()), function_short, compiler_name() + std::string("[br]") + boost_name());
47 //
48 // Boost again, but with promotion to long double turned off:
49 //
50 #if !defined(COMPILER_COMPARISON_TABLES)
51 if(sizeof(long double) != sizeof(double))
52 {
53 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>())); });
54 std::cout << time << std::endl;
55 #if !defined(COMPILER_COMPARISON_TABLES) && (defined(TEST_GSL) || defined(TEST_RMATH) || defined(TEST_C99) || defined(TEST_LIBSTDCXX))
56 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>");
57 #endif
58 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>");
59 }
60 #endif
61
62
63 #if defined(TEST_C99) && !defined(COMPILER_COMPARISON_TABLES)
64 time = exec_timed_test([](const std::vector<double>& v){ return ::log1p(v[0]); });
65 std::cout << time << std::endl;
66 report_execution_time(time, std::string("Library Comparison with ") + std::string(compiler_name()) + std::string(" on ") + platform_name(), function, "math.h");
67 #endif
68 #if defined(TEST_LIBSTDCXX) && !defined(COMPILER_COMPARISON_TABLES)
69 time = exec_timed_test([](const std::vector<double>& v){ return std::tr1::log1p(v[0]); });
70 std::cout << time << std::endl;
71 report_execution_time(time, std::string("Library Comparison with ") + std::string(compiler_name()) + std::string(" on ") + platform_name(), function, "tr1/cmath");
72 #endif
73
74
75 return 0;
76 }
77
78