1 // (C) Copyright John Maddock 2007.
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 #include <boost/math/special_functions/legendre.hpp>
7 #include <boost/math/special_functions/gamma.hpp>
8 #include <fstream>
9 #include <boost/math/tools/test_data.hpp>
10 #include <boost/random.hpp>
11 #include "mp_t.hpp"
12
13 using namespace boost::math::tools;
14 using namespace boost::math;
15 using namespace std;
16
17
18 template<class T>
legendre_p_data(T n,T x)19 boost::math::tuple<T, T, T, T> legendre_p_data(T n, T x)
20 {
21 n = floor(n);
22 T r1 = legendre_p(boost::math::tools::real_cast<int>(n), x);
23 T r2 = legendre_q(boost::math::tools::real_cast<int>(n), x);
24 return boost::math::make_tuple(n, x, r1, r2);
25 }
26
27 template<class T>
assoc_legendre_p_data(T n,T x)28 boost::math::tuple<T, T, T, T> assoc_legendre_p_data(T n, T x)
29 {
30 static boost::mt19937 r;
31 int l = real_cast<int>(floor(n));
32 boost::uniform_int<> ui((std::max)(-l, -40), (std::min)(l, 40));
33 int m = ui(r);
34 T r1 = legendre_p(l, m, x);
35 return boost::math::make_tuple(n, m, x, r1);
36 }
37
main(int argc,char * argv[])38 int main(int argc, char*argv [])
39 {
40 using namespace boost::math::tools;
41
42 parameter_info<mp_t> arg1, arg2;
43 test_data<mp_t> data;
44
45 bool cont;
46 std::string line;
47
48 if(argc < 1)
49 return 1;
50
51 if(strcmp(argv[1], "--legendre2") == 0)
52 {
53 do{
54 if(0 == get_user_parameter_info(arg1, "l"))
55 return 1;
56 if(0 == get_user_parameter_info(arg2, "x"))
57 return 1;
58 arg1.type |= dummy_param;
59 arg2.type |= dummy_param;
60
61 data.insert(&legendre_p_data<mp_t>, arg1, arg2);
62
63 std::cout << "Any more data [y/n]?";
64 std::getline(std::cin, line);
65 boost::algorithm::trim(line);
66 cont = (line == "y");
67 }while(cont);
68 }
69 else if(strcmp(argv[1], "--legendre3") == 0)
70 {
71 do{
72 if(0 == get_user_parameter_info(arg1, "l"))
73 return 1;
74 if(0 == get_user_parameter_info(arg2, "x"))
75 return 1;
76 arg1.type |= dummy_param;
77 arg2.type |= dummy_param;
78
79 data.insert(&assoc_legendre_p_data<mp_t>, arg1, arg2);
80
81 std::cout << "Any more data [y/n]?";
82 std::getline(std::cin, line);
83 boost::algorithm::trim(line);
84 cont = (line == "y");
85 }while(cont);
86 }
87
88
89 std::cout << "Enter name of test data file [default=legendre_p.ipp]";
90 std::getline(std::cin, line);
91 boost::algorithm::trim(line);
92 if(line == "")
93 line = "legendre_p.ipp";
94 std::ofstream ofs(line.c_str());
95 ofs << std::scientific << std::setprecision(40);
96 line.erase(line.find('.'));
97 write_code(ofs, data, line.c_str());
98
99 return 0;
100 }
101
102