ceph/src/boost/libs/math/tools/hyp_2f0_data.cpp

   1 //  (C) Copyright John Maddock 2006.
   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/hypergeometric_2f0.hpp>
   7 #include <boost/math/constants/constants.hpp>
   8 #include <boost/lexical_cast.hpp>
   9 #include <fstream>
  10 #include <map>
  11 #include <boost/math/tools/test_data.hpp>
  12 #include <boost/random.hpp>
  13 #include "mp_t.hpp"
  14
  15 using namespace boost::math::tools;
  16 using namespace boost::math;
  17 using namespace std;
  18
  19 struct hypergeometric_2f0_gen
  20 {
  21    mp_t operator()(mp_t a1, mp_t a2, mp_t z)
  22    {
  23       std::cout << a1 << " " << a2 << " " << z << std::endl;
  24       mp_t result = boost::math::detail::hypergeometric_2f0_generic_series(a1, a2, z, boost::math::policies::policy<>());
  25       std::cout << a1 << " " << a2 << " " << z << " " << result << std::endl;
  26       return result;
  27    }
  28 };
  29
  30 struct hypergeometric_2f0_gen_spec1
  31 {
  32    boost::math::tuple<mp_t, mp_t, mp_t, mp_t> operator()(mp_t a1, mp_t z)
  33    {
  34       mp_t result = boost::math::detail::hypergeometric_2f0_generic_series(a1, a1 + 0.5, z, boost::math::policies::policy<>());
  35       std::cout << a1 << " " << a1 + 0.5 << " " << z << " " << result << std::endl;
  36       return boost::math::make_tuple(a1, a1 + 0.5, z, result);
  37    }
  38 };
  39
  40 int main(int, char* [])
  41 {
  42    parameter_info<mp_t> arg1, arg2, arg3;
  43    test_data<mp_t> data;
  44
  45    std::cout << "Welcome.\n"
  46       "This program will generate spot tests for 2F0:\n";
  47
  48    std::string line;
  49    bool cont;
  50
  51 #if 1
  52    arg1 = make_periodic_param(mp_t(-20), mp_t(-1), 19);
  53    arg2 = make_random_param(mp_t(-5), mp_t(5), 8);
  54    arg1.type |= dummy_param;
  55    arg2.type |= dummy_param;
  56    data.insert(hypergeometric_2f0_gen_spec1(), arg1, arg2);
  57
  58
  59 #else
  60
  61    do {
  62       get_user_parameter_info(arg1, "a1");
  63       get_user_parameter_info(arg2, "a2");
  64       get_user_parameter_info(arg3, "z");
  65       data.insert(hypergeometric_2f0_gen(), arg1, arg2, arg3);
  66       std::cout << "Any more data [y/n]?";
  67       std::getline(std::cin, line);
  68       boost::algorithm::trim(line);
  69       cont = (line == "y");
  70    } while (cont);
  71
  72 #endif
  73    std::cout << "Enter name of test data file [default=hypergeometric_2f0.ipp]";
  74    std::getline(std::cin, line);
  75    boost::algorithm::trim(line);
  76    if(line == "")
  77       line = "hypergeometric_2f0.ipp";
  78    std::ofstream ofs(line.c_str());
  79    ofs << std::scientific << std::setprecision(40);
  80    write_code(ofs, data, line.c_str());
  81
  82    return 0;
  83 }
  84
  85