[REBOL] Re: Puzzle with FIND and SELECT
From: rgombert:essentiel at: 7-Feb-2003 20:21
it seem that rebol say "same" when two values refer to the same object
(place in memory) or, if they are "atomic" values such as numbers or chars
if they are equal considering their value.
>> a: #"4"
>> same? a #"4"
== true
>> same? :a #"4"
== true
>> b: 3
>> same? b 3
== true
>> same? :b 3
== true
>> same? 95 + 5 200 / 2
== true
>> txt: "foo"
>> list: reduce [100 "foo" txt]
>> same? list/1 100.0
== true
>> same? list/2 "foo"
== false
>> same? list/2 txt
== false
>> same? list/3 "foo"
== false
>> same? list/3 txt
== true
So when 'same? have to examine objects that it is not relevant to compare by
their location in memory they are compared by their value.
For "ideal" objects such as numbers, they effectively are the same if their
value is, wherether they could be ;-)
Renaud GOMBERT
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www.essentiel.net
