Add command line switches to console application

[totalnewb]

I have made a small app that is menu driven; so when the program launches it looks like the code snippet below:

  1. Choice 1
  2. Choice 2
  3. Choice 3
  4. Choice 4

So far so good, and all my "Choices" work. Each Choice listed has its own choices (1-4) with in it as well. So what I would like to do is add some command line switch capability to the program. So that when I execute from a command line like this: "myapp.exe -p", it would execute the 1st choice within Choice 1. Running "myapp.exe -m", might run choice 3 from choice 4, etc.

Any help with this would be GREAT. Just like my name implies, I am a total newb at this, everything I have done so far has been by looking for examples of what I need and then modifying to fit my needs better.

[AbstractionAnon]

http://www.cplusplus.com/articles/DEN36Up4/

[totalnewb]

Thanks for that link.. That helped me get the usage screen that was going to be my next step.
However I am still having trouble figure out how to make the command line option -A execute one of my functions we'll say "void choice12".

Because I'm totally new at this I need concrete examples, SORRY.

[admkrk]

It works just like any other variable.

switch(argv[1])
{
    case 'A':
        choice12(argv[2]);
        return;
    case 'B':
        // do something else
        return;
    default:
        // do default stuff
}

I forget off hand how optional arguments work so it might be a little different if you have them as options.