Re: i guess we're frozen & stuff

[Greg Troxel]

http://mail-index.netbsd.org/tech-userlevel/2009/08/thread1.html#002545

http://savannah.gnu.org/support/?106973

My conclusion so far is that "(void *)0" is a legal value for NULL (even
given as an example in POSIX 2008 glossary), and that just because an
expression E evaluates to an integer constant one can not assume that
"sizeof E" is valid.

gnulib has changed to sizeof(NULL) and I think NetBSD is going to change
NULL to add the () as well (to make it less likely people will have
trouble, not because the current value is wrong).

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