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From: toma@tekgvs.TEK.COM (Tom Almy)
Newsgroups: comp.sys.ibm.pc
Subject: YATCB (Yet Another Turbo C Bug)
Message-ID: <2519@tekgvs.TEK.COM>
Date: Tue, 4-Aug-87 18:04:10 EDT
Article-I.D.: tekgvs.2519
Posted: Tue Aug  4 18:04:10 1987
Date-Received: Fri, 7-Aug-87 06:45:36 EDT
Reply-To: toma@tekgvs.UUCP (Tom Almy)
Distribution: world
Organization: Tektronix, Inc., Beaverton, OR.
Lines: 22


I discovered this bug in version 1.0 (of course!).  It is demostrated
in the following program, the simplest example I could muster,
which will produce the "Irreducible Expression Tree" fatal compilation 
error.  

struct {
	unsigned foo:1;
} bar ;

x()
{
	bar.foo++;
}


The fix (besides not using bit fields) is to replace "bar.foo++" with
"bar.foo += 1".



Tom Almy