6 Jun
2012
6 Jun
'12
6:58 a.m.
On Wed, Jun 06, 2012 at 09:46:58AM +0200, Kees Bleijenberg wrote:
This is indeed the code I was talking about. I did not understand how I could create (1,2,3) with the comma operator (,)((,) 1 2) 3 = ((1,2),3) and not (1,2,3). That's why I thought I needed a kind of join operation to 'flatten' this.
It's not possible to create a triple using only the (,) operator -- there's no way to do the join/flatten operation you have in mind, because there's no valid type it could be assigned (unless you make it specific to three-tuples, but I'm guessing you have something more general in mind).
Indeed (,,) 1 2 3 is (1,2,3). But I do not understand what is happening. Is (,,) predefined? Probably not.
Yes, it is! -Brent