From: utzoo!decvax!decwrl!sun!megatest!fortune!hpda!hplabs!sri-unix!HOLSTEGE@CIT-20
Newsgroups: net.unix-wizards
Title: null pointers
Article-I.D.: sri-arpa.750
Posted: Sun Mar  6 15:25:00 1983
Received: Fri Apr  1 10:01:36 1983

From:  Eric Holstege <HOLSTEGE@CIT-20>

A NULL pointer "should" not be used to reference a location, but I see no
reason why it can't be. How else would one examine or store into address 0.
I could imagine a debugger whixh does not run as a separate process wanting to 
examine the program text to disassemble it. On micros, location 0 is often
a valid data location. In fact, I believe that C will allow
	*((char*)0) = 10;
the intent being to put 10 in address 0. 
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