comfort-array: Arrays where the index type is a function of the shape type

Arrays from the basic array package are already very powerful compared with arrays in other languages. They may have any number of dimensions, are type safe and defined in a uniform way using the Ix class with free choice of the lower bounds (0, 1, or whatever you like).

This package goes one step further: The shape and the index type are different, but the index type is a type function of the shape type. This offers much more flexibility and type safety.

Some examples are:

• Range: Allow dynamic choice of lower and upper array bounds such as in the Arrays from the array package. You can combine it with other shapes in other dimensions. It allows you to describe the bounds of each dimension individually.

• Shifted: Describe array bounds by start index and length. It is sometimes more natural to use these parameters. E.g. a non-negative index type like Word cannot represent -1 and thus cannot encode an empty range starting with index 0.

• ZeroBased, OneBased: Arrays with fixed lower bound, either 0 or 1, respectively.

• (:+:): The Append type constructor allows to respresent block arrays, e.g. block matrices.

• Enumeration: Arrays with indices like LT, EQ, GT and dummy shape.

• Set: Use an arbitrary ordered set as index set.

• Triangular: A 2D array with the shape of lower or upper triangular matrix.

The lapack package defines even more fancy shapes like tall rectangular matrices, triangular matrices and banded matrices.

Modules

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Flags

Automatic Flags

Name	Description	Default
setindex	Use efficient Set indexing from containers>=0.5.4	Enabled

Use -f <flag> to enable a flag, or -f -<flag> to disable that flag. More info

Downloads

• comfort-array-0.3.1.tar.gz [browse] (Cabal source package)
• Package description (revised from the package)

Note: This package has metadata revisions in the cabal description newer than included in the tarball. To unpack the package including the revisions, use 'cabal get'.

Maintainer's Corner

Package maintainers

• HenningThielemann

For package maintainers and hackage trustees

• edit package information

Candidates

• 0.0, 0.0.1.1, 0.1, 0.1.1, 0.1.2, 0.2, 0.3, 0.3.1, 0.4, 0.4.1