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begin work on between library

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This commit is contained in:
Mark Thom
2019-02-24 03:45:41 -07:00
parent a9a0343815
commit 767f98eaa3
1 changed files with 6 additions and 5 deletions
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11
src/prolog/lib/between.pl
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@@ -82,11 +82,12 @@ diag_ints(M, N) :-
diag_ints(M0, N0, M, N). diag_ints(M0, N0, M, N).
gen_ints(L, U) :- gen_ints(L, U) :-
integer(L), !, gen_int(U), L =< U. ( integer(L), integer(U), !
gen_ints(L, U) :- ; integer(L) -> gen_int(U)
integer(U), !, gen_int(L), L =< U. ; integer(U) -> gen_int(L)
gen_ints(L, U) :- ; diag_ints(L, U)
diag_ints(L, U), L =< U. ),
L =< U.
numlist(Lower, Upper, List) :- numlist(Lower, Upper, List) :-
gen_ints(Lower, Upper), findall(X, between(Lower, Upper, X), List). gen_ints(Lower, Upper), findall(X, between(Lower, Upper, X), List).