Date: 02 Apr 2002 10:47:44 +0200 From: Paul Richards <paul@freebsd-services.com> To: Matthew Dillon <dillon@apollo.backplane.com> Cc: Mike Barcroft <mike@FreeBSD.ORG>, "M. Warner Losh" <imp@village.org>, jake@locore.ca, cvs-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG Subject: Re: cvs commit: src/sys/i386/i386 critical.c src/sys/i386/include cpufunc.h critical.h src/sys/i386/isa apic_vector.s icu_vector.s src/sys/kern kern_fork.c kern_proc.c kern_switch.c src/sys/alpha/alpha critical.c src/sys/alpha/include cpufunc.h ... Message-ID: <1017737264.43836.18.camel@lobster.freebsd-services.com> In-Reply-To: <200204020814.g328EPc14858@apollo.backplane.com> References: <200204012351.g31NpO890339@freefall.freebsd.org> <20020401.175136.106024419.imp@village.org> <20020401201130.K207@locore.ca> <20020401.181628.15900667.imp@village.org> <200204020428.g324SkE14265@apollo.backplane.com> <20020402024209.B19806@espresso.q9media.com> <200204020814.g328EPc14858@apollo.backplane.com>
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On Tue, 2002-04-02 at 10:14, Matthew Dillon wrote:
>
> :C99 adds even more ways to obfuscate code (for instance, allowing
> :variable declarations anywhere in a code block, not just at the top).
> :
> :Best regards,
> :Mike Barcroft
>
> Ha! I did it first. DICE allows variable declarations virtually
> anywhere a statement is allowed. So, for example, this works:
>
> for (int i = 0; i < 10; ++i) {
> fubar(i);
> int j = 2;
> fubar(j);
> }
>
> Figuring out the difference between a statement and a declaration
> is the *ONLY* thing in a C parser that requires some sophistication.
> Having declarations appear only after open braces doesn't help the
> parsing in the least... once the parser figures out the difference,
> it's figured it out anywhere where a statement can occur.
>
> But even though I implemented this cool feature in DICE, I hardly ever
> used it.
This is the norm for most Perl programmers. It often makes a lot of
sense.
Paul.
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