RE: [Avr-libc-corelib] proposed corelib style guide

[Ron Kreymborg]

> void GetClockFrequency(long crystal);

Of course this should be: long GetClockFrequency(void):
 
> Thinking of call-back, is there some gcc modifier that allows for
> definition
> of a "weak" function? This would allow call-backs to be instanced in
> the
> library as null functions and save the user from creating an instance
> in
> their code just to satisfy the linker when they have no need for it.
> Hmmm.
> Or does that invite problems?

Answering myself, I just built a quick test library and gcc's __attribute__
((weak)) works fine.

My question could be answered by the weak version returning something or
doing something impossible, which the library could use to define an error.
This probably needs more thought...

Ron