dec64 decimal floating point type

Poyeyo via Digitalmars-d digitalmars-d at puremagic.com
Tue Jun 10 12:03:40 PDT 2014


On Tuesday, 15 April 2014 at 07:12:41 UTC, Alix Pexton wrote:
> I contacted Doug to ask if he had any additional resources that 
> I could use to make my argument for DEC64. I only got a brief 
> reply (happy to get any reply from someone so busy) to the 
> effect that everything he has to say on the matter is in the 
> motivation segment of his web site for the proposal [1].
>
> The most salient part is the last 2 sentences...
>
> >	A later revision of IEEE 754 attempted to remedy this, but the
> >	formats it recommended were so inefficient that it has not
> >	found much acceptance. DEC64 is a better alternative.
>
> I encourage anyone who is dismissive of the adoption of DEC64 
> or who would prefer to see the IEEE decimal floats implemented 
> to take the time to read the full article. I also recommend the 
> presentation that alerted me to DEC64 either in full (46:10) 
> [2] or at least just the segment about numbers [3].
>
> A...
>
> [1]	http://dec64.org
> [2]	https://www.youtube.com/watch?v=3WgVHE5Augc
> [3] 
> https://www.youtube.com/watch?feature=player_detailpage&v=3WgVHE5Augc#t=818

I believe one form of decimal64 was intended for inclusion in D 
since at least 2009, according to this article: 
http://dlang.org/d-floating-point.html


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