Safe Haskell | None |
---|---|

Language | Haskell98 |

# Documentation

:: (Unbox a, Monad m) | |

=> (Int -> Bool) | If the Int matches this predicate, |

-> (Int -> a) | ... then pass it to this fn to produce a value |

-> Int | Range between 0 and this maximum. |

-> m (Array U DIM1 a) | Array containing produced values. |

Produce an array by applying a predicate to a range of integers. If the predicate matches, then use the second function to generate the element.

- This is a low-level function helpful for writing filtering operations on arrays.
- Use the integer as the index into the array you're filtering.