2 ISO C 16.3.3/3 or previous, informations needed

[darkcoder]

Hi!

 have you checked this document? http://www.open-std.org/jtc1/sc22/wg14/www/docs/n1124.pdf

(there are also other interesting docs on that site)

I am not sure whether its the standard or just a working on draft.
I gave a quick look and couldn't find limits on marcos nesting.

My 2 cents