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From: grayson@uiucuxc.CSO.UIUC.EDU
Newsgroups: net.lang.c
Subject: sizeof (int) - 1
Message-ID: <102500008@uiucuxc>
Date: Sun, 28-Sep-86 17:29:00 EDT
Article-I.D.: uiucuxc.102500008
Posted: Sun Sep 28 17:29:00 1986
Date-Received: Tue, 30-Sep-86 20:37:46 EDT
Lines: 13
Nf-ID: #N:uiucuxc:102500008:000:319
Nf-From: uiucuxc.CSO.UIUC.EDU!grayson    Sep 28 16:29:00 1986


It is interesting that the expression
	sizeof (int) - 1
is ambiguous in C, for it can be parsed as
	sizeof ((int)(- 1))
or as
	(sizeof(int)) - 1

Think about it!

The unix compiler does it the second way, for when it sees the '-' it
sets the precedence for that character ASSUMING it will be used as a
binary operator.