Date: Thu, 30 Apr 2009 18:36:48 -0500 From: "Rick C. Petty" <rick-freebsd2008@kiwi-computer.com> To: "M. Warner Losh" <imp@bsdimp.com> Cc: freebsd-hackers@FreeBSD.org Subject: Re: C99: Suggestions for style(9) Message-ID: <20090430233648.GA95360@keira.kiwi-computer.com> In-Reply-To: <20090430.090226.1569754707.imp@bsdimp.com> References: <49F4070C.2000108@gmx.de> <20090428114754.GB89235@server.vk2pj.dyndns.org> <20090430.090226.1569754707.imp@bsdimp.com>
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On Thu, Apr 30, 2009 at 09:02:26AM -0600, M. Warner Losh wrote: > > This is the biggest one, and I think it may be too soon. Also, we > need to be careful on the initialization side of things because we > currently have a lot of code that looks like: > > > struct foo *fp; > struct bar *bp; > > fp = get_foo(); > if (!fp) return; > bp = fp->bp; > > this can't easily be translated to the more natural: > > struct foo *fp = get_foo(); > struct bar *bp = fp->bp; > > since really you'd want to write: > > struct foo *fp = get_foo(); > if (!fp) return; > struct bar *bp = fp->bp; > > which isn't legal in 'C'. I thought we were talking about C99, in which case this is perfectly legal. I certainly use it all the time in my C99 code. And I thought this was the point of this discussion, to be able to declare variables when you first use them. -- Rick C. Petty
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