Re: Confused ⎕UCS

[Kacper Gutowski]

On Sun, Nov 22, 2020 at 03:19:19PM +0100, Dr. Jürgen Sauermann wrote:
> Floating point and complex numbers are not allowed as to avoid interference 
> with ⎕CT (i.e. how should rounding be performed?).

I share your sentiment regarding the upper bound of the ⎕UCS domain, 
but throwing a domain error on ⎕UCS1E2 looks like a bug to me too.  
1E2 is clearly an integer regardless of the implementation details, 
and I would be surprised if APL2 didn't accept it.  I would expect 
rounding to be the same as in all the other places that require 
near-integers, like array indices.

The negative ones are also a bit weird.  I wasn't aware of their 
existence, and they seem to work in surprising ways when passed 
to various variants of ⎕CR.

-k