Re: [avr-gcc-list] Code Optimisation question re: volatile

[David Brown]

> "Svein E. Seldal" <address@hidden> wrote:
>
> >>     pwm_state ^= _b00000011;
>
> > Is this syntax standard C? I've never seen this before...
>
> I guess it's rather a macro...

It certainly appears to be a macro - I simply copied it from the original
poster's code so that I wouldn't be changing more than necessary.

David


>
> I've got a patch that implementes 0b binary numbers for GCC (including
> documentation update, finally :), do you think the GCC folks could be
> braught to accept such a patch?  Many other compiler vendors allow for
> this extension already, and my reading of the standard didn't show me
> anything that would make it illegal to provide such an extension.
>
> (Eric included the patch in the GCC that ships with the current
> WinAVR.)
>
> --
> J"org Wunsch        Unix support engineer
> address@hidden
http://www.interface-systems.de/~j/
>
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