Question

Given a function that returns a value, is it possible to exit the function given a certain condition without returning anything? If so, how can you accomplish this?

Example:

int getNumber ()
{ 
    . . . 
}

So say you are in this function. Is there a way to exit it without it doing anything?

Answer 1

You have two options: return something or throw.

int getNumber() 
{
    return 3;
}

int getNumber() 
{
    throw string("Some Var");
}

---

If you throw, you have to catch the type you threw.

int maint(int argc, char ** argc)
{
     try
     {
           getNumber();
     }
     catch(string std)
     {
          //Your code will execute here if you throw
     }
 }