Różnice między wybraną wersją a wersją aktualną.
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pl:prolog:pllib:select [2019/06/27 15:50] |
pl:prolog:pllib:select [2019/06/27 15:50] (aktualna) |
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| + | ====== Select ====== | ||
| + | {{tag>lists}} | ||
| + | ===== Description ===== | ||
| + | Selecting an element from a list | ||
| + | |||
| + | **Source**: The Art of Prolog | ||
| + | ===== Download ===== | ||
| + | Program source code: {{select.pl}} | ||
| + | ===== Listing ===== | ||
| + | <code prolog> | ||
| + | /* | ||
| + | select(X,HasXs,OneLessXs) :- | ||
| + | The list OneLessXs is the result of removing one | ||
| + | occurrence of X from the list HasXs. | ||
| + | */ | ||
| + | |||
| + | select(X,[X|Xs],Xs). | ||
| + | select(X,[Y|Ys],[Y|Zs]) :- select(X,Ys,Zs). | ||
| + | |||
| + | % Program 3.19: Selecting an element from a list | ||
| + | </code> | ||
| + | ===== Comments ===== | ||
