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From: DJ Delorie <dj@redhat.com>
To: Alejandro Colomar <alx@kernel.org>
Cc: Paul.Zimmermann@inria.fr, libc-alpha@sourceware.org
Subject: Re: [PATCH v2 3/3] manual: Cube roots are rarely representable
Date: Sat, 30 Mar 2024 14:50:58 -0400	[thread overview]
Message-ID: <xnr0fr5zal.fsf@greed.delorie.com> (raw)
In-Reply-To: <ZghdEAMXYhK5TjAO@debian> (message from Alejandro Colomar on Sat, 30 Mar 2024 19:42:18 +0100)

Alejandro Colomar <alx@kernel.org> writes:
> -  It's actually contrary to the intent of the commit, which is removing
>    text that claims that cube roots are representable, which is false.

I meant that the function's return value is always representable, i.e.,
doesn't overflow, underflow, or produce NaNs.

I'm not trying to be mathematically pedantic here.  I'm just suggesting
that the patch subject should reflect the change, so that someone
searching for it has something relevent to look for.  Even something as
trivial as "Cube roots: clarify return values" would be better.


  reply	other threads:[~2024-03-30 18:51 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CANv4PNkVv_0eLgiSP3L_KfC-eZJaVLZ5AP1AGfD0GNrR5M4Hrg@mail.gmail.com>
     [not found] ` <ZeEnJB96mMC5bfBz@debian>
     [not found]   ` <CANv4PNmMpiwfv5acr7U6VEVe7PE_AMTzkkpNoNN9jrtVzk_93Q@mail.gmail.com>
2024-03-02 21:54     ` Man page issues: logb, significand, cbrt, log2, log10, exp10 Alejandro Colomar
2024-03-03  2:02       ` Morten Welinder
2024-03-03  2:21         ` Alejandro Colomar
2024-03-03 11:46           ` Vincent Lefevre
2024-03-03 12:21             ` Alejandro Colomar
2024-03-03 22:26               ` Morten Welinder
2024-03-04 12:17         ` Adhemerval Zanella Netto
2024-03-05 16:12 ` [PATCH v2 0/3] manual/math.texi: logb(3) and cbrt(3) fixes Alejandro Colomar
2024-03-05 16:12   ` [PATCH v2 1/3] manual: logb(x) is floor(log2(fabs(x))) Alejandro Colomar
2024-03-29 22:08     ` DJ Delorie
2024-03-29 23:00       ` Alejandro Colomar
2024-03-05 16:12   ` [PATCH v2 2/3] manual: floor(log2(fabs(x))) has rounding errors Alejandro Colomar
2024-03-30  0:24     ` DJ Delorie
2024-03-30  9:27       ` Alejandro Colomar
2024-03-30  9:30         ` Alejandro Colomar
2024-03-30  9:47       ` Andreas Schwab
2024-03-05 16:12   ` [PATCH v2 3/3] manual: Cube roots are rarely representable Alejandro Colomar
2024-03-30  0:27     ` DJ Delorie
2024-03-30  7:07       ` Paul Zimmermann
2024-03-30 16:51         ` DJ Delorie
2024-03-30 18:42           ` Alejandro Colomar
2024-03-30 18:50             ` DJ Delorie [this message]
2024-03-30 19:07               ` Alejandro Colomar
2024-03-31 20:38   ` [PATCH v3 0/4] manual: arith.texi and math.texi fixes Alejandro Colomar
2024-03-31 20:38     ` [PATCH v3 1/4] manual: logb(x) is floor(log2(fabs(x))) Alejandro Colomar
2024-03-31 20:38     ` [PATCH v3 2/4] manual: floor(log2(fabs(x))) has rounding errors Alejandro Colomar
2024-03-31 20:38     ` [PATCH v3 3/4] manual: Clarify return value of cbrt(3) Alejandro Colomar
2024-04-01 18:57       ` DJ Delorie
2024-03-31 20:38     ` [PATCH v3 4/4] manual: significand() uses FLT_RADIX, not 2 Alejandro Colomar
2024-04-01 19:09       ` DJ Delorie

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