[REBOL] Re: Puzzle with FIND and SELECT
From: lmecir:mbox:vol:cz at: 10-Feb-2003 14:35
Well, Romano,
----- Original Message -----
From: "Romano Paolo Tenca"
> But i know that every rebol value is in a block at a given position.
This is *very* questionable as a definition...
> Beyond
> its attributes, it has a block position.
Again, I am not sure I understand:
a: make block! 2
append/only a b: [1]
append/only a b
Is there one value B included twice in A or not?
> Literal values, for example, have never the same block position:
>
> same? "a" "a"
> same? 1 1
>
> should result both false.
See above...
> Only if same? receive pointers to value the two values can be truly the same:
> y: x: [[]]
> same? x y
> same? x/1 y/1
> do reduce ['same? x x]
Neither this looks as a definition, the "pointer" notion is undefined.
My POV is, that you didn't define (at least until now) any sameness, and, moreover, there
are inconsistencies in your specifications.
If you had a function like ABSOLUTELY-SAME? what would be the result of:
absolutely-same? 1 + 2 2 + 1
and why?
Ciao
-L
