Re: copy_term is slow

Just discovered copy_term_nat/2.  My program is now 30% faster.
 
From: Alan Baljeu <[email protected]>
To: Prolog <[email protected]> 
Sent: Friday, January 3, 2014 2:28:44 PM
Subject: [SWIPL] copy_term is slow
 

I observe that copying 100 terms costs .35s execution time which is 30% 
of the total of a rather large program.  The terms being copied look like this:

eqcon(poly([-1*A,1*B],0))-[item(324)=A,item(377)=B]


Based on documenation, I suspect A and B are attributed variables, but in 
this case I don't want the attributes copied.  What can I do?
 
Alan Baljeu
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