Path: utzoo!yunexus!geac!syntron!jtsv16!uunet!ncrlnk!ncrcae!hubcap!gatech!bloom-beacon!apple!bionet!agate!helios.ee.lbl.gov!nosc!humu!uhccux!lee
From: lee@uhccux.uhcc.hawaii.edu (Greg Lee)
Newsgroups: comp.arch
Subject: Re: Semantics (was Software Distribution)
Message-ID: <2484@uhccux.uhcc.hawaii.edu>
Date: 12 Oct 88 17:44:28 GMT
Article-I.D.: uhccux.2484
References: <8916@ihlpb.ATT.COM>
Organization: University of Hawaii
Lines: 14

From article <8916@ihlpb.ATT.COM>, by nevin1@ihlpb.ATT.COM (Liber):
" In article <2472@uhccux.uhcc.hawaii.edu> lee@uhccux.uhcc.hawaii.edu (Greg Lee) writes:
" 
" >Why would programs run any faster in a language with some undefined
" >semantics?  To make a comparison, the same programs would have to
" ...
" like any other pointer.  What does this definition give you?  With this
" definition, you never (at the compiler level) have to check to see
" whether or not the value of a pointer is NULL.  Now, what does this

Hmmm.  I thought the main point here was that you can't check this at
compile time, except occasionally for constant expressions, and so
it would have to be checked at run time, slowing up the program.
		Greg, lee@uhccux.uhcc.hawaii.edu