From: Szabolcs Nagy <nsz@port70.net>
To: musl@lists.openwall.com
Subject: Re: Priorities for next release?
Date: Sun, 12 Aug 2012 14:40:22 +0200 [thread overview]
Message-ID: <20120812124021.GE20243@port70.net> (raw)
In-Reply-To: <20120811222522.GO27715@brightrain.aerifal.cx>
* Rich Felker <dalias@aerifal.cx> [2012-08-11 18:25:22 -0400]:
> Actually not quite as easy as I thought. Do we also want the float and
> ld versions? And how are they supposed to behave on inf/nan? I think
bsd only seem to have significand and significandf
so no ld version
actually the same is true for scalb
(musl declares scalbl but only defines
scalb and scalbf, so i guess scalbl can
be reomved from math.h)
> an optimal implementation would be something like:
>
> if (isnormal(x.d)) return x.rep = (x.rep&mask|exp_0), x.d;
> else return scalbn(x, -ilogb(x));
>
freebsd just returns scalbn(x, -ilogb(x))
we can do that as well
(eventhough it's not very efficient for normal values)
(the i386 asm version uses fxtract which does the same)
next prev parent reply other threads:[~2012-08-12 12:40 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-10 19:12 Rich Felker
2012-08-10 19:23 ` Nathan McSween
2012-08-10 19:39 ` Unit/regression testing (was Re: [musl] Priorities for next release?) Rich Felker
2012-08-10 22:03 ` Priorities for next release? Luca Barbato
2012-08-11 0:05 ` Rich Felker
2012-08-11 0:54 ` Luca Barbato
2012-08-11 1:07 ` Rich Felker
2012-08-11 2:21 ` idunham
2012-08-11 2:36 ` Rich Felker
2012-08-11 12:21 ` Daniel Cegiełka
2012-08-11 12:27 ` Rich Felker
2012-08-11 12:35 ` Daniel Cegiełka
2012-08-11 16:09 ` Rich Felker
2012-08-11 16:35 ` Daniel Cegiełka
2012-08-11 16:50 ` Rich Felker
2012-08-11 17:55 ` orc
2012-08-11 18:41 ` Daniel Cegiełka
2012-08-11 18:47 ` orc
2012-08-11 19:05 ` Daniel Cegiełka
2012-08-11 19:28 ` Rich Felker
2012-08-11 19:56 ` Rich Felker
2012-08-11 20:26 ` Daniel Cegiełka
2012-08-11 20:51 ` Rich Felker
2012-08-11 20:56 ` Rich Felker
2012-08-11 21:22 ` Rich Felker
2012-08-12 12:52 ` Daniel Cegiełka
2012-08-11 22:25 ` Rich Felker
2012-08-12 12:40 ` Szabolcs Nagy [this message]
2012-08-13 8:40 ` Luca Barbato
2012-08-13 13:41 ` Rich Felker
2012-08-13 15:49 ` Szabolcs Nagy
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