Path: utzoo!mnetor!uunet!lll-winken!lll-lcc!ames!ll-xn!mit-eddie!uw-beaver!cornell!rochester!PT.CS.CMU.EDU!A.GP.CS.CMU.EDU!mch
From: mch@A.GP.CS.CMU.EDU (Mark Hahn)
Newsgroups: comp.sys.mac
Subject: re: handles
Message-ID: <805@PT.CS.CMU.EDU>
Date: 4 Feb 88 21:31:39 GMT
Sender: netnews@PT.CS.CMU.EDU
Organization: Carnegie-Mellon University, CS/RI
Lines: 13
Keywords: handles, double-indirection, argv

handles have been around for a long time, though probably not my that name.
For example, see unix's standard parameters to main():

int main(argc, argv)
	int argc;
	char *argv[];

that's ANSI, but it used to be:

	char **argv;

which is a handle by another name.  and in the end, anyone doing
memory-management (in software) or generic data structures has to use them,
or equivalent forms.