duplicates in a|b

Just because the tutorial allows for Pike to be unpredictable doesn't necessarily mean that Pike is.

/ Martin Nilsson (DivX Networks)

Previous text:

2004-09-19 02:43: Subject: duplicates in a|b

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hi,

when doing a union (|) on arrays it appears as if the first array remains as is, and then any missing values from the second array are appended, with duplicates in the first array remaining.

a = ({ 1, 7, 2, 5, 4 }); b = ({ 2, 1, 3, 5, 5 });

a|b is ({ 1, 7, 2, 5, 4, 3, 5 }) b|a is ({ 2, 1, 3, 5, 5, 7, 4 })

the reason for these questions is that the tutorial claims: the elements in the result can come in any order and duplicates may or may not be removed.

should pike be (and remain) that unpredictable?

greetings, martin.

/ Brevbäraren