Re: [avr-libc-dev] Disable/Restore all Interrupts

[E. Weddington]

> Eric Weddington stated (see
> http://mail.nongnu.org/archive/html/avr-libc-dev/2003-
09/msg00003.html)
> that some old version of pgmspace.h used braces in 
macros. I looked
> for this and couldn't find the example. 

See, for instance, avr/pgmspace.h rev 1.9:

<http://savannah.nongnu.org/cgi-bin/viewcvs/avr-libc/avr-
libc/include/avr/pgmspace.h?rev=1.9&content-
type=text/vnd.viewcvs-markup>

Look at macros PSTR, __LPM_enhanced__, __LPM_classic__, 
etc. and you'll see parentheses as the first layer, then 
curly braces as the next layer. And in the case of the 
*LPM* macros, the braces enclose mixed C and inline 
assembly.

Eric