Difference between revisions of "Cum definim operatorii binari ?"
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| − | Ca pe orice functie binara, dar numele ei il veti scrie punind numele operatorului in paranteza rotunda. |
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| − | Ex: |
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| − | suma :: Int -> Int -> Int |
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| − | suma a b = a + b |
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| − | poate deveni |
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| − | (+++) :: Int -> Int -> Int |
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| − | (+++) a b = a + b |
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| − | iar cu o declaratie [[infix]] precizati asociativitatea si nivelul de prioritate al operatorului. |
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| − | Varianta: puteti folosi o functie binara obisnuita ca un operator infixat punandu-i numele intre `apostroafe inverse`. |
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| − | Ex: |
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| − | 3 `suma` 4 |
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| − | va calcula tot : suma 3 4 adica 3 + 4 cf. def. de sus. |
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