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148 lines
3.8 KiB
C++
148 lines
3.8 KiB
C++
// Copyright John Maddock 2006.
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// Use, modification and distribution are subject to the
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// Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt
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// or copy at http://www.boost.org/LICENSE_1_0.txt)
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#include <boost/math/tools/test_data.hpp>
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#include <boost/test/included/prg_exec_monitor.hpp>
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#include <boost/math/special_functions/ellint_3.hpp>
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#include <fstream>
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#include <boost/math/tools/test_data.hpp>
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#include <boost/random.hpp>
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#include "mp_t.hpp"
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float extern_val;
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// confuse the compilers optimiser, and force a truncation to float precision:
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float truncate_to_float(float const * pf)
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{
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extern_val = *pf;
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return *pf;
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}
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boost::math::tuple<mp_t, mp_t, mp_t, mp_t> generate_rf_data(mp_t n)
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{
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static boost::mt19937 r;
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boost::uniform_real<float> ur(0, 1);
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boost::uniform_int<int> ui(-100, 100);
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float x = ur(r);
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x = ldexp(x, ui(r));
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mp_t xr(truncate_to_float(&x));
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float y = ur(r);
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y = ldexp(y, ui(r));
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mp_t yr(truncate_to_float(&y));
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float z = ur(r);
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z = ldexp(z, ui(r));
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mp_t zr(truncate_to_float(&z));
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mp_t result = boost::math::ellint_rf(xr, yr, zr);
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return boost::math::make_tuple(xr, yr, zr, result);
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}
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boost::math::tuple<mp_t, mp_t, mp_t> generate_rc_data(mp_t n)
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{
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static boost::mt19937 r;
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boost::uniform_real<float> ur(0, 1);
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boost::uniform_int<int> ui(-100, 100);
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float x = ur(r);
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x = ldexp(x, ui(r));
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mp_t xr(truncate_to_float(&x));
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float y = ur(r);
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y = ldexp(y, ui(r));
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mp_t yr(truncate_to_float(&y));
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mp_t result = boost::math::ellint_rc(xr, yr);
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return boost::math::make_tuple(xr, yr, result);
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}
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boost::math::tuple<mp_t, mp_t, mp_t, mp_t, mp_t> generate_rj_data(mp_t n)
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{
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static boost::mt19937 r;
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boost::uniform_real<float> ur(0, 1);
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boost::uniform_real<float> nur(-1, 1);
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boost::uniform_int<int> ui(-100, 100);
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float x = ur(r);
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x = ldexp(x, ui(r));
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mp_t xr(truncate_to_float(&x));
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float y = ur(r);
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y = ldexp(y, ui(r));
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mp_t yr(truncate_to_float(&y));
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float z = ur(r);
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z = ldexp(z, ui(r));
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mp_t zr(truncate_to_float(&z));
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float p = nur(r);
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p = ldexp(p, ui(r));
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mp_t pr(truncate_to_float(&p));
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boost::math::ellint_rj(x, y, z, p);
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mp_t result = boost::math::ellint_rj(xr, yr, zr, pr);
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return boost::math::make_tuple(xr, yr, zr, pr, result);
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}
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boost::math::tuple<mp_t, mp_t, mp_t, mp_t> generate_rd_data(mp_t n)
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{
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static boost::mt19937 r;
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boost::uniform_real<float> ur(0, 1);
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boost::uniform_int<int> ui(-100, 100);
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float x = ur(r);
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x = ldexp(x, ui(r));
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mp_t xr(truncate_to_float(&x));
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float y = ur(r);
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y = ldexp(y, ui(r));
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mp_t yr(truncate_to_float(&y));
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float z = ur(r);
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z = ldexp(z, ui(r));
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mp_t zr(truncate_to_float(&z));
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mp_t result = boost::math::ellint_rd(xr, yr, zr);
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return boost::math::make_tuple(xr, yr, zr, result);
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}
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int cpp_main(int argc, char*argv [])
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{
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using namespace boost::math::tools;
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parameter_info<mp_t> arg1, arg2;
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test_data<mp_t> data;
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bool cont;
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std::string line;
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if(argc < 1)
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return 1;
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do{
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int count;
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std::cout << "Number of points: ";
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std::cin >> count;
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arg1 = make_periodic_param(mp_t(0), mp_t(1), count);
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arg1.type |= dummy_param;
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//
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// Change this next line to get the R variant you want:
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//
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data.insert(&generate_rd_data, arg1);
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std::cout << "Any more data [y/n]?";
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std::getline(std::cin, line);
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boost::algorithm::trim(line);
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cont = (line == "y");
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}while(cont);
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std::cout << "Enter name of test data file [default=ellint_rf_data.ipp]";
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std::getline(std::cin, line);
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boost::algorithm::trim(line);
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if(line == "")
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line = "ellint_rf_data.ipp";
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std::ofstream ofs(line.c_str());
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line.erase(line.find('.'));
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ofs << std::scientific << std::setprecision(40);
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write_code(ofs, data, line.c_str());
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return 0;
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}
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