Date: Sat, 6 Mar 2004 02:55:35 +0100 From: Rahul Siddharthan <rsidd@online.fr> To: Daniela <dgw@liwest.at> Cc: chat@freebsd.org Subject: Re: FreeBSD Most wanted Message-ID: <1078538135.40492f9742e70@imp4-q.free.fr> In-Reply-To: <200403060245.05790.dgw@liwest.at> References: <20040306012556.GA2554@online.fr> <200403060245.05790.dgw@liwest.at>
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Daniela wrote: > I like doing AI programming, that's numbercrunching most of the time. > > A compiler can't, for example, know whether you need to have zero returned > from the atoi() function when the user entered nonsense. If you don't need to > check whether the user has entered a valid number, you can do it *much* > faster. Excellent example. Here you're limited by the speed of the fingers of the user who's entering the data, so there's *absolutely no point* in optimising the atoi() function in this way. (Or if you're reading from the disk, the disk I/O will be the bottleneck, though it's admittedly faster than fingers.) R
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