Portability | non-portable |
---|---|

Stability | experimental |

Maintainer | Edward Kmett <ekmett@gmail.com> |

Safe Haskell | Trustworthy |

n-D Vectors

- data V n a
- int :: Int -> TypeQ
- dim :: forall n a. Dim n => V n a -> Int
- class Dim n where
- reflectDim :: p n -> Int

- reifyDim :: Int -> (forall n. Dim n => Proxy n -> r) -> r
- reifyVector :: forall a r. Vector a -> (forall n. Dim n => V n a -> r) -> r
- fromVector :: forall n a. Dim n => Vector a -> Maybe (V n a)

# Documentation

Dim k n => Dim * (V k n a) | |

Dim k n => Monad (V k n) | |

Functor (V k n) | |

Dim k n => Applicative (V k n) | |

Foldable (V k n) | |

Traversable (V k n) | |

Dim k n => Distributive (V k n) | |

Apply (V k n) | |

Bind (V k n) | |

Dim k n => Additive (V k n) | |

Dim k n => Metric (V k n) | |

Dim k n => Core (V k n) | |

Dim * n => Trace (V * n) | |

Dim * n => Affine (V * n) | |

Eq a => Eq (V k n a) | |

(Dim k n, Fractional a) => Fractional (V k n a) | |

(Dim k n, Num a) => Num (V k n a) | |

Ord a => Ord (V k n a) | |

Read a => Read (V k n a) | |

Show a => Show (V k n a) | |

(Dim k n, Storable a) => Storable (V k n a) | |

(Dim k n, Epsilon a) => Epsilon (V k n a) |

This can be used to generate a template haskell splice for a type level version of a given `int`

.

This does not use GHC TypeLits, instead it generates a numeric type by hand similar to the ones used in the "Functional Pearl: Implicit Configurations" paper by Oleg Kiselyov and Chung-Chieh Shan.

reflectDim :: p n -> IntSource

reifyVector :: forall a r. Vector a -> (forall n. Dim n => V n a -> r) -> rSource