Ciao Preprocessor (integrated Alpha version)
| This is an alpha distribution, meant only for testing. Please do let us
| know at ciaopp-bugclip.dia.fi.upm.es any problems you may have.
{Reading /tmp/tmphy20Ov/len.pl
}
{loaded in 3408.214 msec.}
{preprocessed for plai in 0.0 msec.}
{analyzed by plai using det with local-control off in 4.001 msec.}
{written file /tmp/tmphy20Ov/len_det_co.pl}
:- module(_1,[len/2],[assertions]).
:- entry len(A,B)
: ground(A).
:- true pred len(A,B)
: ( native_props:mshare([[B]]), ground([A]), gnd(A), term(B) )
=> ( ground([A,B]), rt8(A), rt10(B) )
+ ( is_det, mut_exclusive ).
len([],0) :- !.
len(Xs,s(N)) :-
tail(Xs,Ys),
len(Ys,N).
:- true pred tail(_1,Xs)
: ( native_props:mshare([[Xs]]), var(Xs), ground([_1]), gnd(_1), term(Xs) )
=> ( ground([_1,Xs]), rt5(_1), gnd(Xs) )
+ ( is_det, mut_exclusive ).
tail([],[]).
tail([X|Xs],Xs).
:- regtype rt9/1.
rt9([]).
rt9(A) :-
gnd(A).
rt9([A|B]) :-
gnd(A),
rt9(B).
:- regtype rt8/1.
rt8([]).
rt8([A|B]) :-
gnd(A),
rt9(B).
:- regtype rt11/1.
rt11(0).
rt11(s(A)) :-
rt11(A).
:- regtype rt10/1.
rt10(0).
rt10(s(A)) :-
rt11(A).
:- regtype rt5/1.
rt5([]).
rt5([A|B]) :-
gnd(A),
gnd(B).