/*
 **************************************************************
 *         C++ Mathematical Expression Toolkit Library        *
 *                                                            *
 * Simple Example 09                                          *
 * Author: Arash Partow (1999-2025)                           *
 * URL: https://www.partow.net/programming/exprtk/index.html  *
 *                                                            *
 * Copyright notice:                                          *
 * Free use of the Mathematical Expression Toolkit Library is *
 * permitted under the guidelines and in accordance with the  *
 * most current version of the MIT License.                   *
 * https://www.opensource.org/licenses/MIT                    *
 * SPDX-License-Identifier: MIT                               *
 *                                                            *
 **************************************************************
*/


#include 
#include 

#include "exprtk.hpp"


template 
void primes()
{
   typedef exprtk::symbol_table         symbol_table_t;
   typedef exprtk::expression           expression_t;
   typedef exprtk::parser               parser_t;
   typedef exprtk::function_compositor  compositor_t;
   typedef typename compositor_t::function function_t;

   T x = T(0);

   symbol_table_t symbol_table;

   symbol_table.add_constants();
   symbol_table.add_variable("x",x);

   compositor_t compositor(symbol_table);

   //Mode 1 - if statement based
   compositor.add(
      function_t("is_prime_impl1")
      .vars("x", "y")
      .expression
      (
         " if (y == 1,true,                "
         "    if (0 == (x % y),false,      "
         "       is_prime_impl1(x,y - 1))) "
      ));

   compositor.add(
      function_t("is_prime1")
      .var("x")
      .expression
      (
         " if (frac(x) != 0)                                   "
         "    return [false];                                  "
         " else if (x