exprtk_simple_example_20.cpp File Reference

#include <cstdio>
#include <stdexcept>
#include <map>
#include <string>
#include "exprtk.hpp"

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Classes
struct	vector_access_rtc

Functions
template<typename T>
void	vector_overflow_example ()
int	main ()

Function Documentation

main()

int main

(

)

Definition at line 105 of file exprtk_simple_example_20.cpp.

{
   vector_overflow_example<double>();
   return 0;
}

References vector_overflow_example().

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vector_overflow_example()

template<typename T>

void vector_overflow_example

(

)

Definition at line 55 of file exprtk_simple_example_20.cpp.

{
   typedef exprtk::symbol_table<T> symbol_table_t;
   typedef exprtk::expression<T>   expression_t;
   typedef exprtk::parser<T>       parser_t;
 
   const std::string expression_str =
      " for (var i := 0; i < max(v0[],v1[]); i += 1) "
      " {                                            "
      "    v0[i] := (2 * v0[i]) + (v1[i] / 3);       "
      " }                                            ";
 
   T v0[5 ] = { 0, 1, 2, 3, 4 };
   T v1[10] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
 
   vector_access_rtc vec_rtc;
 
   vec_rtc.vector_map[v0] = "v0";
   vec_rtc.vector_map[v1] = "v1";
 
   symbol_table_t symbol_table;
   expression_t   expression;
   parser_t       parser;
 
   symbol_table.add_vector("v0", v0);
   symbol_table.add_vector("v1", v1);
 
   expression.register_symbol_table(symbol_table);
 
   parser.register_vector_access_runtime_check(vec_rtc);
 
   if (!parser.compile(expression_str, expression))
   {
      printf("Error: %s\tExpression: %s\n",
             parser.error().c_str(),
             expression_str.c_str());
 
      return;
   }
 
   try
   {
      expression.value();
   }
   catch(std::runtime_error& exception)
   {
      printf("Exception: %s\n",exception.what());
   }
}

References vector_access_rtc::vector_map.

Referenced by main().

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