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::erfc(v[0]); }, [](const std::vector<double>& v){ return v[2]; });
33
34
35 #if defined(TEST_C99) && !defined(COMPILER_COMPARISON_TABLES)
36 screen_data([](const std::vector<double>& v){ return ::erfc(v[0]); }, [](const std::vector<double>& v){ return v[2]; });
37 #endif
38 #if defined(TEST_LIBSTDCXX) && !defined(COMPILER_COMPARISON_TABLES)
39 screen_data([](const std::vector<double>& v){ return std::tr1::erfc(v[0]); }, [](const std::vector<double>& v){ return v[2]; });
40 #endif
41 #if defined(TEST_GSL) && !defined(COMPILER_COMPARISON_TABLES)
42 screen_data([](const std::vector<double>& v){ return gsl_sf_erfc(v[0]); }, [](const std::vector<double>& v){ return v[2]; });
43 #endif
44
45 unsigned data_used = data.size();
46 std::string function = "erfc[br](" + boost::lexical_cast<std::string>(data_used) + "/" + boost::lexical_cast<std::string>(data_total) + " tests selected)";
47 std::string function_short = "erfc";
48
49 double time = exec_timed_test([](const std::vector<double>& v){ return boost::math::erfc(v[0]); });
50 std::cout << time << std::endl;
51 #if !defined(COMPILER_COMPARISON_TABLES) && (defined(TEST_GSL) || defined(TEST_RMATH) || defined(TEST_C99) || defined(TEST_LIBSTDCXX))
52 report_execution_time(time, std::string("Library Comparison with ") + std::string(compiler_name()) + std::string(" on ") + platform_name(), function, boost_name());
53 #endif
54 report_execution_time(time, std::string("Compiler Comparison on ") + std::string(platform_name()), function_short, compiler_name() + std::string("[br]") + boost_name());
55 //
56 // Boost again, but with promotion to long double turned off:
57 //
58 #if !defined(COMPILER_COMPARISON_TABLES)
59 if(sizeof(long double) != sizeof(double))
60 {
61 double time = exec_timed_test([](const std::vector<double>& v){ return boost::math::erfc(v[0], boost::math::policies::make_policy(boost::math::policies::promote_double<false>())); });
62 std::cout << time << std::endl;
63 #if !defined(COMPILER_COMPARISON_TABLES) && (defined(TEST_GSL) || defined(TEST_RMATH) || defined(TEST_C99) || defined(TEST_LIBSTDCXX))
64 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>");
65 #endif
66 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>");
67 }
68 #endif
69
70
71 #if defined(TEST_C99) && !defined(COMPILER_COMPARISON_TABLES)
72 time = exec_timed_test([](const std::vector<double>& v){ return ::erfc(v[0]); });
73 std::cout << time << std::endl;
74 report_execution_time(time, std::string("Library Comparison with ") + std::string(compiler_name()) + std::string(" on ") + platform_name(), function, "math.h");
75 #endif
76
77 #if defined(TEST_LIBSTDCXX) && !defined(COMPILER_COMPARISON_TABLES)
78 time = exec_timed_test([](const std::vector<double>& v){ return std::tr1::erfc(v[0]); });
79 std::cout << time << std::endl;
80 report_execution_time(time, std::string("Library Comparison with ") + std::string(compiler_name()) + std::string(" on ") + platform_name(), function, "tr1/cmath");
81 #endif
82 #if defined(TEST_GSL) && !defined(COMPILER_COMPARISON_TABLES)
83 time = exec_timed_test([](const std::vector<double>& v){ return gsl_sf_erfc(v[0]); });
84 std::cout << time << std::endl;
85 report_execution_time(time, std::string("Library Comparison with ") + std::string(compiler_name()) + std::string(" on ") + platform_name(), function, "GSL " GSL_VERSION);
86 #endif
87
88
89 return 0;
90 }
91
92