From: utzoo!decvax!microsof!uw-beave!cornell!vax135!ariel!houti!hogpc!houxm!5941ux!machaids!dlm
Newsgroups: net.unix-wizards
Title: Re: Questions about nil-pointer dereferences (the "plague")
Article-I.D.: machaids.284
Posted: Tue Apr  5 09:17:07 1983
Received: Wed Apr  6 07:14:33 1983
References: sri-arpa.798 rlgvax.181

I wish to add my voice to the notion of page 0 being noread,nowrite,noexe.
In addition to the very bad practice of dereferencing NULL ( what if it
is not a string?), there are many cases where using a NULL pointer
to reference a member of a struct will result in a very small but NONZERO
address being generated.  The page zero protection on VMS has caught
many such bugs.
	Daryl Monge
	BTL
	machaids!dlm