From: ts <decoux@...>
Date: 2001-03-10T02:38:46+09:00
Subject: [ruby-talk:12341] Re: Q re looping structures

>>>>> "B" == Benjamin J Tilly <ben_tilly@operamail.com> writes:

B> Yes.  You need to maintain a cache of what pairs of ids
B> have been seen together in this comparison, and return
B> true when you see that you have seen this match.  This
B> gives an equivalence relation, and it works out to,

 This is OK for you this :

pigeon% cat b.rb
#!/usr/bin/ruby
require 'tangle'
def cl( a, n)
   base=loop= [a.clone]
   (n-1).times { tmp = [a.clone]; loop << tmp; loop = tmp }
   loop << base
   base
end
 
p cl("a",1) == cl("a",101)
pigeon% 


pigeon% b.rb
true
pigeon%


Guy decoux