Re: concat: domain error in concat: vector = []

[Bill Allombert <Bill.Allombert@math.u-bordeaux.fr>]

On Sat, Sep 15, 2018 at 06:11:17PM -0400, Max Alekseyev wrote:
> Hi Bill,
> I'd expect f(0) = g(0) = []. What's the catch here?

f(1) = "1", f(2) = "12", g(1) = [1]~ g(2) = [1,2]~
so the user want f(0)="", g(0)=[]~

It is completly arbitrary to return [].

Cheers,
Bill.