Re: Output hash-table from a function

[Yuri Khan <yuri.v.khan@gmail.com>]

On Sun, 22 Sept 2024 at 23:03, Heime <heimeborgia@protonmail.com> wrote:

> > > > > > (defun xiakos-anctr (fpln)
> > > > > >
> > > > > > (if (hash-table-p fpln)
> > > > > >
> > > > > > (let ( (anctr (make-hash-table :test 'equal)) )
> > > > > > (maphash (lambda (waypt dirpath)
> > > > > > (puthash
> > > > > > waypt (not (file-directory-p dirpath))
> > > > > > anctr))
> > > > > > fpln)) ))
> > > > >
> > > > > Hint 1: What does your function to return right now?
> > > >
> > > > xiakos-anctr is certainly not returning a hash table, as I wanted
> > >
> I have made a check with (hash-table-p (xiakos-anctr flpn)) which returns
> false.
>
> What gets returned is the return from maphash, which is always nil.

Correct.

> > > > > Hint 2: You’ve created a hash table, bound it to a local variable,
> > > > > then did a bunch of mutations to that hash table, and then what?
>
> From what I could conclude, the hash table gets lost.

Also correct.

So what change do you need to fix your xiakos-anctr function?