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Postings from October 2013
On Tue, Oct 29, 2013 at 01:46:55PM -0400, Andy Dougherty wrote:
> > > Short version (copied into this bug for easier access):
> > > -----------------------------------------------------------------------
> > >
> > > $ perl -e "print unpack('f>', pack ('f>', 279.117156982422));"
> > > 279.617156982422
>
> Is this the same as [perl #86534]? That was fixed by
>
> commit cd07c537987a76c934f141ca5bc0309e5a6b2609
> Author: David Mitchell <davem@iabyn.com>
> Date: Mon Mar 21 14:14:52 2011 +0000
>
> pack test failures with long doubles on x86/gcc
>
Porting/bisect-runner tells me that on 32-bit Linux x86 with gcc -O2,
the commit below fixed it. Whether it fixed it or just reordered code
so gcc doesn't make the error in [perl #86534], I don't know.
commit 3a88beaa68dbb5bad93145daa0c829e0aeb40adb
Author: Nicholas Clark <nick@ccl4.org>
Date: Tue May 7 17:39:42 2013 +0200
When endian-swapping in pack, simply copy the bytes in reverse order.
This should restore support for big endian Crays. It doesn't support
mixed-endian systems.
--
Andy Dougherty doughera@lafayette.edu
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