hi(g,plus(A,B),int) :- hi(g,A,int),hi(g,B,int),!.
in the above statement what does the ‘!’ sign at the end of the statement do ?
hi(g,plus(A,B),int) :- hi(g,A,int),hi(g,B,int),!. in the above statement what does the ‘!’ sign at the
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hi(g,plus(A,B),int) :- hi(g,A,int),hi(g,B,int),!.
in the above statement what does the ‘!’ sign at the end of the statement do ?
That’s the cut operator, which basically states “if we got up to here, don’t backtrack.”
So, if both recursive calls succeed, the
hipredicate will not retry them.