Thread: IF statement not working within a WHILE loop

I have this piece of code which is triggered when a bit is set high (the bit is set high when an interrupt occurs). It works when I have a delay in place, but not without. Can anyone explain why?

Code:

while (1) {
//  _delay_us(1);
    if (myFlags & (1 << serialAvailable)) {
      sendChar('Q');
      myFlags &= ~(1 << serialAvailable);
    }
}

If it matter, this is for an AVR microcontroller.
So if I remove those comment symbols, it works. I cannot understand why?
The only way I can get this to work is if I change...

Code:

if (myFlags & (1 << serialAvailable)) {

to...

Code:

if (1) {

Could this just be a artefact of the Atmel micro, or is this something with the code itself?

john.c -> I cant reply, but yes I do. That is fixed but still the issue persists
Thanks.

I assume you mean to use bitwise AND (&), not logical AND (&&).