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// (C) Copyright John Maddock 2007.
// Use, modification and distribution are subject to the
// Boost Software License, Version 1.0. (See accompanying file
// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
#include <boost/math/special_functions/legendre.hpp>
#include <boost/math/special_functions/gamma.hpp>
#include <fstream>
#include <boost/math/tools/test_data.hpp>
#include <boost/random.hpp>
#include "mp_t.hpp"
using namespace boost::math::tools;
using namespace boost::math;
using namespace std;
template<class T>
boost::math::tuple<T, T, T, T> legendre_p_data(T n, T x)
{
n = floor(n);
T r1 = legendre_p(boost::math::tools::real_cast<int>(n), x);
T r2 = legendre_q(boost::math::tools::real_cast<int>(n), x);
return boost::math::make_tuple(n, x, r1, r2);
}
template<class T>
boost::math::tuple<T, T, T, T> assoc_legendre_p_data(T n, T x)
{
static boost::mt19937 r;
int l = real_cast<int>(floor(n));
boost::uniform_int<> ui((std::max)(-l, -40), (std::min)(l, 40));
int m = ui(r);
T r1 = legendre_p(l, m, x);
return boost::math::make_tuple(n, m, x, r1);
}
int main(int argc, char*argv [])
{
using namespace boost::math::tools;
parameter_info<mp_t> arg1, arg2;
test_data<mp_t> data;
bool cont;
std::string line;
if(argc < 1)
return 1;
if(strcmp(argv[1], "--legendre2") == 0)
{
do{
if(0 == get_user_parameter_info(arg1, "l"))
return 1;
if(0 == get_user_parameter_info(arg2, "x"))
return 1;
arg1.type |= dummy_param;
arg2.type |= dummy_param;
data.insert(&legendre_p_data<mp_t>, arg1, arg2);
std::cout << "Any more data [y/n]?";
std::getline(std::cin, line);
boost::algorithm::trim(line);
cont = (line == "y");
}while(cont);
}
else if(strcmp(argv[1], "--legendre3") == 0)
{
do{
if(0 == get_user_parameter_info(arg1, "l"))
return 1;
if(0 == get_user_parameter_info(arg2, "x"))
return 1;
arg1.type |= dummy_param;
arg2.type |= dummy_param;
data.insert(&assoc_legendre_p_data<mp_t>, arg1, arg2);
std::cout << "Any more data [y/n]?";
std::getline(std::cin, line);
boost::algorithm::trim(line);
cont = (line == "y");
}while(cont);
}
std::cout << "Enter name of test data file [default=legendre_p.ipp]";
std::getline(std::cin, line);
boost::algorithm::trim(line);
if(line == "")
line = "legendre_p.ipp";
std::ofstream ofs(line.c_str());
ofs << std::scientific << std::setprecision(40);
line.erase(line.find('.'));
write_code(ofs, data, line.c_str());
return 0;
}
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