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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/spherical_harmonic.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;
float extern_val;
// confuse the compilers optimiser, and force a truncation to float precision:
float truncate_to_float(float const * pf)
{
extern_val = *pf;
return *pf;
}
template<class T>
boost::math::tuple<T, T, T, T, T, T> spherical_harmonic_data(T i)
{
static boost::mt19937 r;
int n = real_cast<int>(floor(i));
boost::uniform_int<> ui(0, (std::min)(n, 40));
int m = ui(r);
boost::uniform_real<float> ur(-2*constants::pi<float>(), 2*constants::pi<float>());
float _theta = ur(r);
float _phi = ur(r);
T theta = truncate_to_float(&_theta);
T phi = truncate_to_float(&_phi);
T r1 = spherical_harmonic_r(n, m, theta, phi);
T r2 = spherical_harmonic_i(n, m, theta, phi);
return boost::math::make_tuple(n, m, theta, phi, r1, r2);
}
int main(int argc, char*argv [])
{
using namespace boost::math::tools;
parameter_info<mp_t> arg1, arg2, arg3;
test_data<mp_t> data;
bool cont;
std::string line;
if(argc < 1)
return 1;
do{
if(0 == get_user_parameter_info(arg1, "n"))
return 1;
arg1.type |= dummy_param;
arg2.type |= dummy_param;
arg3 = arg2;
data.insert(&spherical_harmonic_data<mp_t>, arg1);
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=spherical_harmonic.ipp]";
std::getline(std::cin, line);
boost::algorithm::trim(line);
if(line == "")
line = "spherical_harmonic.ipp";
std::ofstream ofs(line.c_str());
line.erase(line.find('.'));
ofs << std::scientific << std::setprecision(40);
write_code(ofs, data, line.c_str());
return 0;
}
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