Re: [avr-gcc-list] Feature request - compiler warning for "if" stmts that do nothing

[Curtis Maloney]

Joerg Wunsch wrote:
> Loops of this kind are often used as spin-loops:
>
>         while ((SPSR & (1 << SPIF)) == 0)
>                 ;
>
> Warning on this would be a bit wasteful.

Personaly, I'd see a warning on this as valid.  An _error_ on this would be 
wrong.

I'd rather have a few warnings on things I know are ok _this time_, that not 
have warnings on something that _might_ be wrong.  Like the "suggest 
parenthesis around assignment in condition" warning.  Helpful for finding the 
time when you accidently put = instead of ==, but some times it's what you meant.

--
Curtis Maloney