20 Sep
2020
20 Sep
'20
10:57 p.m.
(Of course,
that assumes NULL is 0, but I don't think I've run into any
architecture so braindead as to not have NULL=0.)
It has nothing to do with machine architecture. The C standard
says 0 coerces to the null pointer. NULL, defined in <stddef.h>,
is part of the library, not the language.