From -4477206025524418426 X-Google-Language: ENGLISH,ASCII X-Google-Thread: f78e5,857007135a18bc05 X-Google-Attributes: gidf78e5,public From: James.Kanze@dresdner-bank.com Subject: Re: static_cast to void Date: 1999/09/13 Message-ID: <7rip2t$fvt$1@nnrp1.deja.com>#1/1 X-Deja-AN: 524543397 Approved: Fergus Henderson References: X-Original-Date: Mon, 13 Sep 1999 12:01:38 GMT X-Http-User-Agent: Mozilla/4.06 [de] (WinNT; I) X-Complaints-To: news@news.unimelb.edu.au X-Http-Proxy: 1.0 x41.deja.com:80 (Squid/1.1.22) for client 193.194.7.84 X-Trace: ariel.ucs.unimelb.edu.au 937243783 25082 128.250.37.153 (13 Sep 1999 17:29:43 GMT) Organization: Deja.com - Share what you know. Learn what you don't. X-Article-Creation-Date: Mon Sep 13 12:01:38 1999 GMT X-Auth: PGPMoose V1.1 PGP comp.std.c++ iQBFAgUAN900buEDnX0m9pzZAQEGxwF+J3m1BYcDnlVeISjVGFGLouATv0PaUUMT qnP8JMTuQIIqbB2R+swmZGoCzP8dzsdG =vmUI X-MyDeja-Info: XMYDJUIDkanze NNTP-Posting-Date: 13 Sep 1999 17:29:43 GMT Newsgroups: comp.std.c++ In article , jcoffin@taeus.com (Jerry Coffin) wrote: > > In article , > francis@robinton.demon.co.uk says... > > [ ... ] > > Do such compilers exist in the real world? Because if so they must > > be exceptionally noisy. Strictly speaking they should warn me for: > > cout << 1; > > as I will have ignore the return value of: > > operator << (cout, 1); > > ...not to mention for such things as: > > x = 1; > since this yields (not returns, since there's no function call) a > value of 1... > In all honesty, I've never seen (or heard of) a compiler with such > stupid warnings, but I've seen at least one version of lint that did. This is the second mention of lint I've seen here. The lint I remember looked at the entire program (not just a module), and complained if the return value of a function was used in some places, and not in others. This was before there was a void type, and the warning was useful -- most of the time, it meant that you were trying to use a return value from a function which didn't have one (but was implicitly int anyway). And it didn't warn for cases like x = 1. -- James Kanze mailto: James.Kanze@dresdner-bank.com Conseils en informatique orient�e objet/ Beratung in objekt orientierter Datenverarbeitung Ziegelh�ttenweg 17a, 60598 Frankfurt, Germany Tel. +49(069)63198627 Sent via Deja.com http://www.deja.com/ Share what you know. Learn what you don't. --- [ comp.std.c++ is moderated. To submit articles, try just posting with ] [ your news-reader. If that fails, use mailto:std-c++@ncar.ucar.edu ] [ --- Please see the FAQ before posting. --- ] [ FAQ: http://reality.sgi.com/austern_mti/std-c++/faq.html ]