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// Copyright John Maddock 2013.
// 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)
//[special_data_example
#include <boost/multiprecision/mpfr.hpp>
#include <boost/math/tools/test_data.hpp>
#include <boost/test/included/prg_exec_monitor.hpp>
#include <boost/math/tools/tuple.hpp>
#include <fstream>
using namespace boost::math::tools;
using namespace boost::math;
using namespace std;
using namespace boost::multiprecision;
typedef number<mpfr_float_backend<1000> > mp_type;
boost::math::tuple<mp_type, mp_type, mp_type> generate(mp_type a)
{
mp_type tg, lg;
mpfr_gamma(tg.backend().data(), a.backend().data(), GMP_RNDN);
mpfr_lngamma(lg.backend().data(), a.backend().data(), GMP_RNDN);
return boost::math::make_tuple(a, tg, lg);
}
int cpp_main(int argc, char*argv [])
{
parameter_info<mp_type> arg1, arg2;
test_data<mp_type> data;
bool cont;
std::string line;
if(argc < 1)
return 1;
do{
//
// User interface which prompts for
// range of input parameters:
//
if(0 == get_user_parameter_info(arg1, "a"))
return 1;
arg1.type |= dummy_param;
data.insert(&generate, arg1);
std::cout << "Any more data [y/n]?";
std::getline(std::cin, line);
boost::algorithm::trim(line);
cont = (line == "y");
}while(cont);
//
// Just need to write the results to a file:
//
std::cout << "Enter name of test data file [default=gamma.ipp]";
std::getline(std::cin, line);
boost::algorithm::trim(line);
if(line == "")
line = "gamma.ipp";
std::ofstream ofs(line.c_str());
line.erase(line.find('.'));
ofs << std::scientific << std::setprecision(500);
write_code(ofs, data, line.c_str());
return 0;
}
//]
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