Algebraic data types: Difference between revisions
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=={{header|Haskell}}== |
=={{header|Haskell}}== |
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<lang |
<lang haskell> |
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data Color = R | B |
data Color = R | B |
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data Tree a = E | T Color (Tree a) a (Tree a) |
data Tree a = E | T Color (Tree a) a (Tree a) |
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