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From: Mark H Weaver <mhw@netris.org>
To: Steve Sprang <steve.sprang@gmail.com>
Cc: guix-devel@gnu.org
Subject: Re: [PATCH] build: Fix potential type error when generating human-friendly byte count strings.
Date: Wed, 09 Sep 2015 22:42:55 -0400	[thread overview]
Message-ID: <87a8svuh8w.fsf@netris.org> (raw)
In-Reply-To: <CA+xn8YCMk5tJjB_rEFEPwWm4ef3enCuRJ03PR1f8bH8TvGrUwQ@mail.gmail.com> (Steve Sprang's message of "Wed, 9 Sep 2015 14:05:35 -0700")

Steve Sprang <steve.sprang@gmail.com> writes:

> This is a follow up tweak to my previous "progress bar" patch. With a
> really slow throughput it's possible to get fractional sub-KiB byte
> counts, so I added some additional number massaging.

Sounds good!  Looks good to me except for a few minor nits on this
auxiliary procedure:

> +(define (number->integer n)
> +  "Given an arbitrary number N, round it and return the exact result."
> +  (inexact->exact (round n)))

How about calling it "nearest-exact-integer"?  Also, it makes sense only
for real numbers, not arbitrary numbers, and the variable name N is
conventionally used to denote natural numbers, and X for real numbers.

So, how about naming the argument 'x', and using something closer to the
following docstring:

  "Given a real number X, return the nearest exact integer, with ties
going to the nearest exact even integer."

Otherwise, looks good to me.  Can you send an updated patch?

      Mark

  reply	other threads:[~2015-09-10  2:44 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-09-09 21:05 [PATCH] build: Fix potential type error when generating human-friendly byte count strings Steve Sprang
2015-09-10  2:42 ` Mark H Weaver [this message]
2015-09-10  3:31   ` Steve Sprang
2015-09-15  3:27     ` Steve Sprang
2015-09-15  3:40       ` Mark H Weaver

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