Initial commit

libs/math/tools/zeta_data.cpp

@@ -0,0 +1,72 @@
+//  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/zeta.hpp>
+#include <boost/math/constants/constants.hpp>
+#include <fstream>
+#include <boost/math/tools/test_data.hpp>
+#include "mp_t.hpp"
+
+using namespace boost::math::tools;
+using namespace std;
+
+struct zeta_data_generator
+{
+   mp_t operator()(mp_t z)
+   {
+      std::cout << z << " ";
+      mp_t result = boost::math::zeta(z);
+      std::cout << result << std::endl;
+      return result;
+   }
+};
+
+struct zeta_data_generator2
+{
+   boost::math::tuple<mp_t, mp_t> operator()(mp_t z)
+   {
+      std::cout << -z << " ";
+      mp_t result = boost::math::zeta(-z);
+      std::cout << result << std::endl;
+      return boost::math::make_tuple(-z, result);
+   }
+};
+
+
+int main(int argc, char*argv [])
+{
+   parameter_info<mp_t> arg1;
+   test_data<mp_t> data;
+
+   bool cont;
+   std::string line;
+
+   std::cout << "Welcome.\n"
+      "This program will generate spot tests for the zeta function:\n";
+
+   do{
+      if(0 == get_user_parameter_info(arg1, "z"))
+         return 1;
+      arg1.type |= dummy_param;
+      data.insert(zeta_data_generator2(), 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=zeta_data.ipp]";
+   std::getline(std::cin, line);
+   boost::algorithm::trim(line);
+   if(line == "")
+      line = "zeta_data.ipp";
+   std::ofstream ofs(line.c_str());
+   ofs << std::scientific << std::setprecision(40);
+   write_code(ofs, data, "zeta_data");
+   
+   return 0;
+}
+