Odd calculated deco "ripples" (was Re: RFC: color change for calculated deco)

Linus Torvalds torvalds at linux-foundation.org
Sun Jan 13 16:50:15 PST 2013


On Sun, Jan 13, 2013 at 4:42 PM, Linus Torvalds
<torvalds at linux-foundation.org> wrote:
>
> Hmm. Sadly, I don't have access to any machine with 128-bit FP "long
> double". I wonder if a 32-bit version with the 80-bit "long double"
> would make any difference. The Intel 80-bit FP format has 64 bits of
> mantissa, iirc, so it would be an extra 12 bits, and if the ripple
> goes away..

Ugh. That looks like a disaster. Tons of compat libraries - all the
gnome, cairo, pango stuff, and trying to build subsurface and
libdivecomputer with -m32 and everything else too.. I don't think I
have any native 32-bit machines left.

Anybody who as a 32-bit build environment all set, and willing to just
do a search-and-replace of "double" with "long double" in the deco
code? Do the ripples go away?

                Linus


More information about the subsurface mailing list