DIP80: phobos additions

[via Digitalmars-d]

I think there might be a disconnection in this thread. D only, or 
D frontend?

There are hardware vendor and commercial libraries that are 
heavily optimized for particular hardware configurations. There 
is no way a D-only solution can beat those. As an example Apple 
provides various implementations for their own machines, so an 
old program on a new machine can run faster than a static D-only 
library solution.

What D can provide is a unifying abstraction, but to get there 
one need to analyze what exists. Like Apple's Accelerate 
framework:

https://developer.apple.com/library/prerelease/ios/documentation/Accelerate/Reference/AccelerateFWRef/index.html#//apple_ref/doc/uid/TP40009465

That goes beyond BLAS. We also need to look at vDSP etc. You'll 
find similar things for Microsoft/Intel/AMD/ARM etc…