exprtk_simple_example_07.cpp File Reference

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

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

Function Documentation

logic()

template<typename T >

void logic

(

)

Definition at line 27 of file exprtk_simple_example_07.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_string = "not(A and B) or C";
 
   symbol_table_t symbol_table;
   symbol_table.create_variable("A");
   symbol_table.create_variable("B");
   symbol_table.create_variable("C");
 
   expression_t expression;
   expression.register_symbol_table(symbol_table);
 
   parser_t parser;
   parser.compile(expression_string,expression);
 
   printf(" # | A | B | C | %s\n"
          "---+---+---+---+-%s\n",
          expression_string.c_str(),
          std::string(expression_string.size(),'-').c_str());
 
   for (int i = 0; i < 8; ++i)
   {
      symbol_table.get_variable("A")->ref() = T((i & 0x01) ? 1 : 0);
      symbol_table.get_variable("B")->ref() = T((i & 0x02) ? 1 : 0);
      symbol_table.get_variable("C")->ref() = T((i & 0x04) ? 1 : 0);
 
      const int result = static_cast<int>(expression.value());
 
      printf(" %d | %d | %d | %d | %d \n",
             i,
             static_cast<int>(symbol_table.get_variable("A")->value()),
             static_cast<int>(symbol_table.get_variable("B")->value()),
             static_cast<int>(symbol_table.get_variable("C")->value()),
             result);
   }
}

References exprtk::parser< T >::compile().

Referenced by exprtk::parser< T >::settings_store::disable_logic_operation(), and exprtk::parser< T >::settings_store::enable_logic_operation().

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main()

int main

(

)

Definition at line 68 of file exprtk_simple_example_07.cpp.

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