From: Paul Eggert <eggert@cs.ucla.edu>
To: Faissal Bensefia <faissaloo@me.com>, libc-alpha@sourceware.org
Subject: Re: Faster string to integer conversion
Date: Sun, 10 Apr 2016 19:54:00 -0000 [thread overview]
Message-ID: <570AAF76.6090007@cs.ucla.edu> (raw)
In-Reply-To: <570A225E.20409@me.com>
Thanks for thinking about this. Certainly strtol etc. could be sped up and the
approach you mention might be a win; it's hard to say, given its setup overhead.
In practice most integers are small, and you'd need to benchmark the approach on
a set of integers that are of "typical" size. It may well be more work to come
up with a convincing benchmark than to come up with the actual code.
If you're interested in strtol speedup ideas, how about this one? Jettison
tables like __strtol_ul_max_tab and replace their uses with invocations of the
INT_ADD_WRAPV macro defined by the following recently-proposed patch:
https://sourceware.org/ml/libc-alpha/2016-04/msg00174.html
prev parent reply other threads:[~2016-04-10 19:54 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-10 9:52 Faissal Bensefia
2016-04-10 19:54 ` Paul Eggert [this message]
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