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Stack Overflow ?


From: Ralph Grove
Subject: Stack Overflow ?
Date: Wed, 03 Oct 2001 10:10:48 -0400
User-agent: Mozilla/5.0 (X11; U; Linux 2.4.3-12 i686; en-US; 0.7) Gecko/20010316

Why does this code produce a stack overflow?

move(1,3).
move(X,Y) :- move(Y,X), @>(X,Y).


| ?- move(X,Y).

X = 1
Y = 3 ?

X = 3
Y = 1 ?

Fatal Error: local stack overflow

--
Thanks,
Ralph




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