deriving
Eq instance has some strange comparisons
I have made an image processing module that defines a Pixel type as a Color and Location. Pixel, Color, and Location derive Eq, as I may want to compare pixels between multiple images.[详细]
2023-02-28 13:11 分类:问答How does deriving work in Haskell?
Algebraic Data Types (ADTs) in Haskell can automatically become instances of some typeclasses (like Show, Eq) by deriving from them.[详细]
2023-01-18 23:51 分类:问答Deriving a type and its dependencies
I\'ve been playing with newtype wrappers for my indexes to avoid 开发者_JAVA技巧bugs, and I have some code like this:[详细]
2022-12-17 05:56 分类:问答