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/legendre.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
18 typedef double T;
19 #define SC_(x) static_cast<double>(x)
20
main()21 int main()
22 {
23 # include "legendre_p.ipp"
24 # include "legendre_p_large.ipp"
25
26 add_data(legendre_p);
27 add_data(legendre_p_large);
28
29 unsigned data_total = data.size();
30
31 screen_data([](const std::vector<double>& v){ return boost::math::legendre_q(v[0], v[1]); }, [](const std::vector<double>& v){ return v[3]; });
32
33
34 #if defined(TEST_GSL) && !defined(COMPILER_COMPARISON_TABLES)
35 screen_data([](const std::vector<double>& v){ return gsl_sf_legendre_Ql(v[0], v[1]); }, [](const std::vector<double>& v){ return v[3]; });
36 #endif
37
38 unsigned data_used = data.size();
39 std::string function = "legendre Q[br](" + boost::lexical_cast<std::string>(data_used) + "/" + boost::lexical_cast<std::string>(data_total) + " tests selected)";
40 std::string function_short = "legendre Q";
41
42 double time;
43
44 time = exec_timed_test([](const std::vector<double>& v){ return boost::math::legendre_q(v[0], v[1]); });
45 std::cout << time << std::endl;
46 #if !defined(COMPILER_COMPARISON_TABLES) && (defined(TEST_GSL) || defined(TEST_RMATH))
47 report_execution_time(time, std::string("Library Comparison with ") + std::string(compiler_name()) + std::string(" on ") + platform_name(), function, boost_name());
48 #endif
49 report_execution_time(time, std::string("Compiler Comparison on ") + std::string(platform_name()), function_short, compiler_name() + std::string("[br]") + boost_name());
50 //
51 // Boost again, but with promotion to long double turned off:
52 //
53 #if !defined(COMPILER_COMPARISON_TABLES)
54 if(sizeof(long double) != sizeof(double))
55 {
56 time = exec_timed_test([](const std::vector<double>& v){ return boost::math::legendre_q(v[0], v[1], boost::math::policies::make_policy(boost::math::policies::promote_double<false>())); });
57 std::cout << time << std::endl;
58 #if !defined(COMPILER_COMPARISON_TABLES) && (defined(TEST_GSL) || defined(TEST_RMATH))
59 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>");
60 #endif
61 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>");
62 }
63 #endif
64
65
66 #if defined(TEST_GSL) && !defined(COMPILER_COMPARISON_TABLES)
67 time = exec_timed_test([](const std::vector<double>& v){ return gsl_sf_legendre_Ql(v[0], v[1]); });
68 std::cout << time << std::endl;
69 report_execution_time(time, std::string("Library Comparison with ") + std::string(compiler_name()) + std::string(" on ") + platform_name(), function, "GSL " GSL_VERSION);
70 #endif
71
72 return 0;
73 }
74
75