Date: Fri, 9 Oct 1998 11:03:39 +0930 From: Greg Lehey <grog@lemis.com> To: Nate Williams <nate@mt.sri.com>, James Wyatt <jwyatt@rwsystr.RWSystems.net> Cc: freebsd-chat@FreeBSD.ORG Subject: Re: Compiler likes tabs better than spaces?? (was Re: ..logging (the problem is fixed)) Message-ID: <19981009110339.L3369@freebie.lemis.com> In-Reply-To: <199810082218.QAA29900@mt.sri.com>; from Nate Williams on Thu, Oct 08, 1998 at 04:18:20PM -0600 References: <4.1.19981007131531.0408a100@mail.lariat.org> <Pine.LNX.3.91.981008112249.7204D-100000@rwsystr.RWSystems.net> <199810082218.QAA29900@mt.sri.com>
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On Thursday, 8 October 1998 at 16:18:20 -0600, Nate Williams wrote: > [ Moved to -chat, as this is really not security related... ] > >> Tabs in source can compile a *lot* faster in large C++ source and >> headers. I also used it over NFS to do *nix programming before I got >> my vi-feet... > > Now, this is one of those statements I *really* like to see, since it > has no basis on factual data. Using tabs vs. spaces won't make your > program compile measurably faster. Whoever told you this was smoking > something.... Or maybe he'd been asleep for 20 years. Like many such legends, it's based in fact, like the claim in the compiler spec I'm currently reviewing that integrating the preprocessor and the compiler would make it faster. 20 years ago this might have made sense. Remember the multi-minute compiles of 500 and 1000 line source files? But 20 years ago the machines were about .1% of the speed of modern machines. Compilers do a lot more now, and lexical analysis is only a small part. I've half ported the original PDP 11 C compiler to FreeBSD, and compilations are so fast that I can't measure them. I'm wondering whether I could do a make world of 2.11BSD in under a minute... Greg -- See complete headers for address, home page and phone numbers finger grog@lemis.com for PGP public key To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-chat" in the body of the message
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