How to call functions from the command line

[AmmarN]

I assume your variable command is a C++ string - also check that all your comparisons are == and not =.
This little program which look similar to your idea works OK

// very simple command line menu

#include <iostream>
#include <string>
using namespace std;

int main()
{
       string command("");;
       while(command != "Q" && command !="q")    // exit on Q or q
          {
           printf("Select from command\n"
                   "  Open, Process, Save, Q\n   enter command ?");
           cin >> command;
           if(command=="Open")    cout << "Open" << endl;  else
           if(command=="Process") cout << "Process" << endl;  else
           if(command=="Save")    cout << "Save" << endl;  else
                                  cout << "Illegal command try again" << endl;
           }
}

THANK YOU VERY MUCH FOR YOUR TIME AND VALUABLE HELP.I got this working. I do have another little question though.

I would like to convert a short in to 2 chars. Since short is 2 bytes i would like to isolate them and convert them into 2 chars.

Any suggestions would be appreciated.
Thanks in advance.