[REBOL] Re: R: Mutability and sameness - a new puzzle
From: g:santilli:tiscalinet:it at: 22-Jul-2001 12:07
Hello Romano!
On 22-Lug-01, you wrote:
RT> Index, indeed, is not a propriety of values but a propriety
RT> of words. In this case, clearing "a" hides this propriety and
Actually, it is a property of series values. Words just have the
ability to refer to other values (whatever they are).
Proof:
>> series: [a b c d]
== [a b c d]
>> blk: reduce [series skip series 2]
== [[a b c d] [c d]]
>> head blk/2
== [a b c d]
RT> Another thing: if you make a different binding, two word
RT> which have the same value can result in different value.
Because they don't refer to the same value! Two words with the
same spelling but with a different binding are two different word!
values. They can refer to the same REBOL value or they can refer
to two different values, just like any other couple of different
word! values.
RT> same? reduce bind [get/any 'a] in o 'a reduce bind [get/any
RT> 'a] 'system;=false
BTW, it's simpler this way:
same? get/any in o 'a get/any in system/words 'a
RT> The value of a is not identical to value of a. :-)
Of course not, You are comparing two different values; the fact
that they are referred to by two words that happen to have the
same spelling is irrelevant.
Regards,
Gabriele.
--
Gabriele Santilli <[giesse--writeme--com]> - Amigan - REBOL programmer
Amiga Group Italia sez. L'Aquila -- http://www.amyresource.it/AGI/
