Re: [avr-gcc-list] Got strange compilation problem

[David Bourgeois]

Indeed, that was the issue, thanks!

On Thu, 16 Feb 2006 10:41:33 +0100, Bjarne Laursen <address@hidden>  
wrote:

> David Bourgeois wrote:
>
> > uint8_t fifoLength(fifo_t *p)
> > {
> >     uint8_t length;
> >
> >     length = (p->inIdx) - (p->outIdx);
> >     length %= FIFO_SIZE;
> >       return length;
> > }
>
> You are casting the result of the subtraction to uint8_t before doing  
> the modulos.
> If you write it in one statement it will be the same as the operants or  
> at least int.
> This could be the difference.
>
> -Bjarne Laursen, RoseTechnology A/S



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David Bourgeois

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