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Date:      Fri, 6 Sep 2013 17:51:29 +0100
From:      David Chisnall <>
To:        Steve Kargl <>
Cc:        Baptiste Daroussin <>, "" <>, " Current" <>
Subject:   Re: clang+libc++ using missing powl
Message-ID:  <>
In-Reply-To: <>
References:  <> <> <> <> <>

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On 6 Sep 2013, at 16:59, Steve Kargl <> =

> Well, your commit has pre-empted any discussion on whether
> there would have been a better kludge.  Oh well.

I'm very happy for it to be replaced by something better (and would be =
ecstatic for it to go away completely and for all of the functions to =
have full-precision implementations).

> Concerning coshl, sinhl, and tanhl.  I had integrated bde's
> code into msun and prepared a patch to commit over a week ago.
> Unfortunately, my testing on sparc64 revealed a few issues
> with tanhl, and Bruce and I are still discussing the fix.

Good to hear.

> PS: I have working erfl and erfcl for ld80 archs.  I'm still
> testing and refining the code.  It turns out that computing
> the needed rational approximation is fairly difficult (at least
> for me).

That's great too.

Please do poke re@ about committing these after the code freeze if =
they're done before 10.0 ships.  It would be great to have them in for =
the release.


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