skipping a statemnet from inside a repeating block

[Gopan]

On Thursday, 14 February 2013 at 16:57:17 UTC, Andrea Fontana 
wrote:
> Maybe you can write 2 different callbacks, one with if, one 
> without and switch between them.

I like that idea.  But it is less elegant.  For example, for a 
timer callback, I may have to restart the timer with a new 
callback function.  Instead of a single callback, if it is a 
event subscription, other subscribers will be affected.

> Maybe with a compile-time code generation to avoid code 
> repetitions...

I am looking for a more generic solution.  It should work with 
within a loop also.  Just for the sake of achieving it I will 
have to put those statements in a function, call it with function 
pointer, etc.

while(true)
{
    ...
    Statement_1;
    if(i == MY_MAGIC_NUMBER)
    {
       //done with this.
    }
    Statement_3;
    ...
}

> Just for a int comparison or is it a different long operation?
:)  you will ask me to short cut with a simple condition.

Thanks,
Gopan