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fp:lab09 [2021/05/13 16:03] pdmatei |
fp:lab09 [2021/05/13 17:39] (current) pdmatei |
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| - gender (''male'' or ''female'') | - gender (''male'' or ''female'') | ||
| - | * Implement the type ''Gender'' (it is better to define a gender separately, instead of using True/False or strings, because it reduces the occurrence of bugs). | + | * Implement the type ''Gender'' (it is better to define a gender separately, instead of using True/False or strings, because it reduces the occurrence of bugs). |
| - | * Implement a function which takes a gender, a list of ID's and returns those having that gender (you can safely assume that the CNP has valid form. **Hint:** use functional closures and higher-order functions). | + | * Implement a function which takes a gender, a list of ID's and returns those having that gender (you can safely assume that the CNP has valid form. **Hint:** use functional closures and higher-order functions). |
| <code haskell> | <code haskell> | ||
| Line 64: | Line 64: | ||
| </code> | </code> | ||
| - | 9.1.5. (**Optional**) Define an ADTs called ''Range'', which encodes a **range** of birth years together with a gender. For instance: | + | 9.1.5. Define an ADTs called ''Range'', which encodes a **range** of birth years together with a gender. For instance: |
| - one range could designate people of gender //female// born between 1956 and 2005 | - one range could designate people of gender //female// born between 1956 and 2005 | ||
| - another range could designate both //male// and //female// born between 1991 and 2006 | - another range could designate both //male// and //female// born between 1991 and 2006 | ||