--- pl:prolog:pllib:list_length_2 [2019/06/27 15:50]
+++ pl:prolog:pllib:list_length_2 [2019/06/27 15:50] (aktualna)
@@ Linia 1: / Linia 1: @@
+====== List length 2 ======
+{{tag>lists}}
+===== Description =====
+Determining the length of a list.
+**Source**:  The Art of Prolog
+===== Download =====
+Program source code: {{list_length_2.pl}}
+===== Listing =====
+<code prolog>
+/*
+	mylength(Xs,N) :- The list Xs has N elements.
+*/
+	mylength([],0).
+	mylength([X|Xs],s(N)) :- mylength(Xs,N).
+%	Program 3.17: Determining the length of a list
+</code>
+===== Comments =====

pl/prolog/pllib/list_length_2.txt · ostatnio zmienione: 2019/06/27 15:50 (edycja zewnętrzna)

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