@hackage PrimitiveArray0.2.2.0

This library provides efficient multidimensional arrays.

In general all operations are (highly) unsafe, no bounds-checking or other sanity-checking is performed. Operations are aimed toward efficiency as much as possible. Goals of the library are to have arrays according to three ideas: immutablemutable arrays, strictlazy arrays, zero-based/lower-bound arrays. Zero-based arrays save one addition on each access if the lower bound or the array is always zero.

We have forked two repa modules: Shape and Index.

Unboxed vectors are available with implementations based on "primitive" and "vector". For some reason, we loose 50% performance with RNAfold if we use "vector" as the underlying data type, while Nussinov78 does not suffer.