On Friday, 27 June 2014 at 13:50:29 UTC, Iain Buclaw via Digitalmars-d wrote:
On 27 June 2014 14:24, Element 126 via Digitalmars-d
<digitalmars-d@puremagic.com> wrote:
On 06/27/2014 03:04 PM, dennis luehring wrote:

Am 27.06.2014 14:20, schrieb Russel Winder via Digitalmars-d:

On Fri, 2014-06-27 at 11:10 +0000, John Colvin via Digitalmars-d wrote:
[ ]

I understand why the current situation exists. In 2000 x87 was
the standard and the 80bit precision came for free.


Real programmers have been using 128-bit floating point for decades. All this namby-pamby 80-bit stuff is just an aberration and should never
have happened.


what consumer hardware and compiler supports 128-bit floating points?


I noticed that std.math mentions partial support for big endian non-IEEE doubledouble. I first thought that it was a software implemetation like the QD library [1][2][3], but I could not find how to use it on x86_64. It looks like it is only available for the PowerPC architecture.
Does anyone know about it ?


We only support native types in std.math. And partial support is
saying more than what there actually is. :-)

The doubledouble type is available for PowerPC. In fact, I try to use this for my PowerPC64 port of LDC. The partial support here is a bit annoying but I did not find the time to implement the missing functions myself.

It is "native" in the sense that it is a supported type by gcc and xlc.

Regards,
Kai

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