Article View: net.lang.c
Article #9498Re: expression sequencing bugs
From: Gunnar Stefansson
Date: Fri, 03 Oct 1986 07:08
Date: Fri, 03 Oct 1986 07:08
20 lines
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1473 bytes
In article <4197@brl-smoke.ARPA> C90630JG%WUVMD.BITNET@wiscvm.ARPA writes: >In article <760@oakhill.UUCP> tomc@oakhill.UUCP (Tom Cunningham) writes: >> /* a = b + b + b */ >> a = ((b=1),b) + ((b=2),b) + ((b=3),b) >> >>I expected the result to be 6. With the Microsoft C compiler and the >>compiler on the Sun 3, the result is 9. Apparently the parenthetical >>assignments are all getting done before the comma and addition. Any >>thoughts on this? >> >Tom, I agree, the result should be 6, as defined by K&R, but I have tried >it on ...................... >I would like everyone to test it on as many machines as prossible, to >see if we can find as least ONE other besides Small-C, that works. Just for the record, our HP 9000, Model 550 running HP-UX returns the value 6. Surely anything else isn't just strange, bizarre,..., but just plain a compiler bug. Gunnar
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: arc1-ca.pugleaf.net!utzoo!mnetor!seismo!mcvax!enea!hafro!gunnar From: gunnar@hafro.UUCP (Gunnar Stefansson) Newsgroups: net.lang.c Subject: Re: expression sequencing bugs Message-ID: <279@hafro.UUCP> Date: Fri, 3-Oct-86 03:08:30 EDT Article-I.D.: hafro.279 Posted: Fri Oct 3 03:08:30 1986 Date-Received: Tue, 7-Oct-86 23:19:50 EDT References: <4197@brl-smoke.ARPA> <760@oakhill.UUCP> Reply-To: gunnar@hafro.UUCP (Gunnar Stefansson) Organization: Marine Research Institute, Reykjavik. Lines: 20 Summary: HP-UX gives 6.