'$' in identifiers -- poll results

Bob Lewis bobl at aeolus.UUCP
Mon Feb 11 04:49:52 AEST 1985


Here are the results of the poll I conducted back in December of '84 on how
various implementations of C treat the '$' occurring in identifiers.  I'd
like to thank everyone who sent in responses.  Sorry it's taken me so long
to assemble them.

Certainly, these results represent only a small number of C implementations.
Nevertheless, they do serve the purpose of demonstrating the NON-portability
of '$'s.  I apologize for any bad guesses I've made about hardware or OS in
the following.  I should have been more explicit in my original request. 

Supplier	Hardware	OS			Accepts '$'?
--------	--------	---------		------------
AT&T		VAX/PDP-11?	(pcc) System III	no
AT&T		IBM 370		(pcc) MVS & VM/CMS	no
AT&T		PDP-11		(pcc) Version 7		no
Aztec		lots		CPM-80			no
BDS		lots		CPM-80			no
DEC		VAX		VMS			yes
DeSmet		IBM-PC		PC-DOS/MS-DOS(?)	no
Georgia Tech	Prime ?		PRIMOS (?)		yes
Mark Williams	IBM-PC, etc.(?) PC-DOS/MS-DOS(?)	yes, but strips
Plexus		Plexus P/60	System III		no
Prime		Prime ?		PRIMOS (?)		yes
Sun		Sun		4.2bsd			yes
Tektronix	Tek 6100/6200	UTek			yes
UCB		VAX		(cc) 4.1bsd & 4.2bsd	yes
UCB		VAX/PDP-11 (?)	(pcc) 4.2bsd (?)	yes

Thanks again to all those who responded.

	- Bob Lewis
	  ...!tektronix!teklds!bobl



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