Implementing Half Floats in D

[Don]

On Tuesday, 29 January 2013 at 22:49:02 UTC, Joseph Rushton 
Wakeling wrote:
> On 01/29/2013 11:27 PM, Iain Buclaw wrote:
>> I'm sure this was mentioned before, but what does halffloat 
>> have over
>> std.numeric.CustomFloat?
>
> "These formats are for storage only; all operations on them are 
> performed by first implicitly extracting them to real first."
>
> ... whereas HalfFloat extracts to float, and so should be 
> faster, which is probably one of the main goals here.
>
> But since std.numeric was mentioned, why not add HalfFloat 
> there rather than its own separate module?


The discussion we had on github agreed that std.halffloat isn't a 
good place.
But OTOH std.numeric needs a complete overhaul, it's a mess.
It would be a mistake to throw it in there.