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From: naz@hslrswi.hasler.ascom.ch (Norman H. Azadian)
Newsgroups: comp.lang.icon
Subject: alternation surprise
Message-ID: <1899@hslrswi.hasler.ascom.ch>
Date: 12 Mar 91 14:25:47 GMT
Organization: Hasler AG
Lines: 20

I know my postings are starting to sound like an idiot's tour
of Icon.  Anyway, here's another "gotcha" I stumbled over.

	procedure main()
	local flag, x
		flag := 1
		(\flag)  |  (x := runerr(500))
		(\flag)  |  x := runerr(500)
	end

This dies on line 5, which I did not expect.  I guess alternation
has lower priority than assignment.  Pardon me while I go out and
stock up on parenthesis.

NHA
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