On the best way to NULL out a pointer after free: A macro or a function passed a pointer to a pointer

[Richard Sharpe]

Hi folks,

Are there many open source projects out there that use the SAFE_FREE
approach other than Samba.

I am currently embroiled in a discussion on which of these is a better
approach. That is, a simple one-line macro like SAFE_FREE or a
function that takes a pointer to a pointer?

The pointer to the pointer approach seems somehow obscene in this case.

-- 
Regards,
Richard Sharpe
(何以解憂？唯有杜康。--曹操)