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From: ari@eleazar.dartmouth.edu (Ari Halberstadt)
Newsgroups: comp.lang.c
Subject: Re: Short code to determine compiler's
Message-ID: <14497@dartvax.Dartmouth.EDU>
Date: 15 Aug 89 16:41:45 GMT
References: <396@uop.uop.EDU> <225800197@uxe.cso.uiuc.edu> <579@targon.UUCP> <171@bms-at.UUCP>
Sender: news@dartvax.Dartmouth.EDU
Reply-To: ari@eleazar.dartmouth.edu (Ari Halberstadt)
Organization: Dartmouth College, Hanover, NH
Lines: 19

In article <171@bms-at.UUCP> stuart@bms-at.UUCP (Stuart Gathman) writes:
#>In article <579@targon.UUCP>, andre@targon.UUCP (andre) writes:
#>
#>> 	register n1, n2, n3, n4, n5, n6, n7, n8; /* etc. */
#>> 	int *a;
#>
#>> 	a = &n8;
#>> 	a = &n7;
#>
#>> 	/* repeat n6 - n2 */
#>> 	a = &n1;
#>
#>Taking the address of a register variable is not allowed even when it
#>is not actually in a register. 

It should be illegal, but not all compilers enforce the rule! I tried the
program on our VAX running 4.3BSD, and it compiled it very happily.
--
Ari Halberstadt '91, "Long live short signatures"