New library: open multi-methods

[jmh530 via Digitalmars-d-announce]

On Tuesday, 18 July 2017 at 21:16:11 UTC, jmh530 wrote:
>
> I may not have been clear enough. My ideal solution wouldn't 
> make any changes to that densematrix.d file, just the 
> interface. So I don't have any issue with the matrix modules 
> doing the math and the app doing the printing.
>

Well, I suppose the matrix interface would be saying that it can 
print, so maybe not as split up as you would like. While you 
could define a separate interface for printing, that would 
require a change to densematrix.