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From: gwyn@smoke.BRL.MIL (Doug Gwyn)
Newsgroups: comp.lang.c
Subject: Re: precedence of ?:
Message-ID: <11030@smoke.BRL.MIL>
Date: 12 Sep 89 03:08:41 GMT
References: <1265@gmdzi.UUCP>
Reply-To: gwyn@brl.arpa (Doug Gwyn)
Organization: Ballistic Research Lab (BRL), APG, MD.
Lines: 15

In article <1265@gmdzi.UUCP> wittig@gmdzi.UUCP (Georg Wittig) writes:
-How should
-	0 ? 0 : i = 0
-be interpreted?
-1)	as	(0) ? (0) : (i=0)
-	resulting in a (strange but) legal expression
-or 2)	as	(0 ? 0 : i) = 0
-	resulting in a syntax error

The latter is the correct parse.  See the table on p. 49 of K&R I.
As you note, it is an unwell-formed formula.

-Existing compilers don't agree on which alternative is the correct one.

Well, they ought to.  See the table on p. 49 of K&R I.