Article View: comp.std.c
Article #964Re: Order of Evaluation (plus ?'s)
From: Doug Gwyn
Date: Sun, 19 Nov 1989 08:57
Date: Sun, 19 Nov 1989 08:57
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1389 bytes
In article <13871@orstcs.CS.ORST.EDU> bailey@jacobs.CS.ORST.EDU.UUCP (Kirk Bailey) writes: -I'm curious about the fate of the changed floating point evaluation -constraints which were a part of some of the intermediate dpANSI "C" documents; -the idea being that the programmer could be assured of a fixed evaluation -order without requiring the use of temps. The current doc's I have seem to -no longer mention this (or the synchronization aspect of unary '+')? Unary + is no longer the way to do this. Use parentheses instead. -On an unrelated front: Is it conforming practice to cast the value returned -from a function call to void when the function returns a struct or union? -Granted that a nice compiler will allow this, I can't find anything explicit -about it in the std... If it is allowed by the grammar and does not violate Constraints or Semantics, then it is allowed in a strictly conforming program.
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arc1-ca.pugleaf.net!utzoo!attcan!uunet!fernwood!hercules!apple!brutus.cs.uiuc.edu!uakari.primate.wisc.edu!aplcen!haven!adm!smoke!gwynReferences:
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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!fernwood!hercules!apple!brutus.cs.uiuc.edu!uakari.primate.wisc.edu!aplcen!haven!adm!smoke!gwyn From: gwyn@smoke.BRL.MIL (Doug Gwyn) Newsgroups: comp.std.c Subject: Re: Order of Evaluation (plus ?'s) Message-ID: <11654@smoke.BRL.MIL> Date: 19 Nov 89 08:57:12 GMT References: <21265@usc.edu> <13871@orstcs.CS.ORST.EDU> Reply-To: gwyn@brl.arpa (Doug Gwyn) Organization: Ballistic Research Lab (BRL), APG, MD. Lines: 16