Date: Sat, 1 Feb 2003 16:14:08 -0800 From: Juli Mallett <jmallett@FreeBSD.org> To: Bakul Shah <bakul@bitblocks.com> Cc: Mark Murray <mark@grondar.org>, Julian Elischer <julian@elischer.org>, current@FreeBSD.ORG Subject: Re: Style fixups for proc.h Message-ID: <20030201161408.B64200@FreeBSD.org> In-Reply-To: <200302020002.TAA24089@warspite.cnchost.com>; from bakul@bitblocks.com on Sat, Feb 01, 2003 at 04:02:57PM -0800 References: <200302012315.h11NFVaX028348@grimreaper.grondar.org> <200302020002.TAA24089@warspite.cnchost.com>
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* De: Bakul Shah <bakul@bitblocks.com> [ Data: 2003-02-01 ] [ Subjecte: Re: Style fixups for proc.h ] > > Julian Elischer writes: > > > I don't know about the protection with a '_'. > > > > > > It's not standard and usually the name matches that used in the actual > > > function. > > > > When the prototype parameter name matches a local variable, the C compiler > > (and lint) whine about clashes between names in local/global namespace. > > According to C99, a function prototype has its own scope or > name space. It terminates at the end of the function > declarator. Basically naming a parameter in a function > prototype is an aide to the human user; it is not needed for > correct compilation[1] so this warning is bogus. As the > spec says in section 6.7.5.3 (according the draft I have) > > "The identifiers [naming parameters] are declared for > descriptive purposes only and go out of scope at the end > of the [prototype] declaration". > > I can't see what actual error is avoided by this warning. If a named prototype clashes with something in global scope, isn't it still a shadowing issue? They should probably never be *in* scope. -- Juli Mallett <jmallett@FreeBSD.org> AIM: BSDFlata -- IRC: juli on EFnet OpenDarwin, Mono, FreeBSD Developer ircd-hybrid Developer, EFnet addict FreeBSD on MIPS-Anything on FreeBSD To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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