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/erf.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 "erf_small_data.ipp"
23 # include "erf_data.ipp"
24 # include "erf_large_data.ipp"
25
26 add_data(erf_small_data);
27 add_data(erf_data);
28 add_data(erf_large_data);
29
30 unsigned data_total = data.size();
31
32 screen_data([](const std::vector<double>& v){ return boost::math::erf(v[0]); }, [](const std::vector<double>& v){ return v[1]; });
33
34
35 #if defined(TEST_C99) && !defined(COMPILER_COMPARISON_TABLES)
36 screen_data([](const std::vector<double>& v){ return ::erf(v[0]); }, [](const std::vector<double>& v){ return v[1]; });
37 #endif
38 #if defined(TEST_LIBSTDCXX) && !defined(COMPILER_COMPARISON_TABLES)
39 screen_data([](const std::vector<double>& v){ return std::tr1::erf(v[0]); }, [](const std::vector<double>& v){ return v[1]; });
40 #endif
41 #if defined(TEST_GSL) && !defined(COMPILER_COMPARISON_TABLES)
42 screen_data([](const std::vector<double>& v){ return gsl_sf_erf(v[0]); }, [](const std::vector<double>& v){ return v[1]; });
43 #endif
44 unsigned data_used = data.size();
45 std::string function = "erf[br](" + boost::lexical_cast<std::string>(data_used) + "/" + boost::lexical_cast<std::string>(data_total) + " tests selected)";
46 std::string function_short = "erf";
47
48 double time = exec_timed_test([](const std::vector<double>& v){ return boost::math::erf(v[0]); });
49 std::cout << time << std::endl;
50 #if !defined(COMPILER_COMPARISON_TABLES) && (defined(TEST_GSL) || defined(TEST_RMATH) || defined(TEST_C99) || defined(TEST_LIBSTDCXX))
51 report_execution_time(time, std::string("Library Comparison with ") + std::string(compiler_name()) + std::string(" on ") + platform_name(), function, boost_name());
52 #endif
53 report_execution_time(time, std::string("Compiler Comparison on ") + std::string(platform_name()), function_short, compiler_name() + std::string("[br]") + boost_name());
54 //
55 // Boost again, but with promotion to long double turned off:
56 //
57 #if !defined(COMPILER_COMPARISON_TABLES)
58 if(sizeof(long double) != sizeof(double))
59 {
60 double time = exec_timed_test([](const std::vector<double>& v){ return boost::math::erf(v[0], boost::math::policies::make_policy(boost::math::policies::promote_double<false>())); });
61 std::cout << time << std::endl;
62 #if !defined(COMPILER_COMPARISON_TABLES) && (defined(TEST_GSL) || defined(TEST_RMATH) || defined(TEST_C99) || defined(TEST_LIBSTDCXX))
63 report_execution_time(time, std::string("Library Comparison with ") + std::string(compiler_name()) + std::string(" on ") + platform_name(), function, boost_name());
64 #endif
65 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>");
66 }
67 #endif
68
69
70 #if defined(TEST_C99) && !defined(COMPILER_COMPARISON_TABLES)
71 time = exec_timed_test([](const std::vector<double>& v){ return ::erf(v[0]); });
72 std::cout << time << std::endl;
73 report_execution_time(time, std::string("Library Comparison with ") + std::string(compiler_name()) + std::string(" on ") + platform_name(), function, "math.h");
74 #endif
75 #if defined(TEST_LIBSTDCXX) && !defined(COMPILER_COMPARISON_TABLES)
76 time = exec_timed_test([](const std::vector<double>& v){ return std::tr1::erf(v[0]); });
77 std::cout << time << std::endl;
78 report_execution_time(time, std::string("Library Comparison with ") + std::string(compiler_name()) + std::string(" on ") + platform_name(), function, "tr1/cmath");
79 #endif
80 #if defined(TEST_GSL) && !defined(COMPILER_COMPARISON_TABLES)
81 time = exec_timed_test([](const std::vector<double>& v){ return gsl_sf_erf(v[0]); });
82 std::cout << time << std::endl;
83 report_execution_time(time, std::string("Library Comparison with ") + std::string(compiler_name()) + std::string(" on ") + platform_name(), function, "GSL " GSL_VERSION);
84 #endif
85
86
87 return 0;
88 }
89
90