@hackage hashabler0.1.0.0

This package is a rewrite of the hashable library by Milan Straka and Johan Tibell, having the following goals:

• Extensibility; it should be easy to implement a new hashing algorithm on any Hashable type, for instance if one needed more hash bits

• Honest hashing of values, and principled hashing of algebraic data types (see e.g. hashable issues #74 and #30)

• Cross-platform consistent hash values, with a versioning guarantee. Where possible we ensure morally identical data hashes to indentical values regardless of processor word size and endianness.

• Make implementing identical hash routines in other languages as painless as possible. We provide an implementation of a simple hashing algorithm (FNV-1a) and make an effort define Hashable instances in a way that is well-documented and sensible, so that e.g. one can (hopefully) easily implement string hashing routine in JavaScript that will match the way we hash strings here.

Versioning: Except for instances where we specifically note that we make no promise of consistency, changes to hash values entail a major version number bump.