enumset

Sets of enumeration values represented by machine words

With this package you can create a type safe interface to flag sets. It is intended for interfacing to C libraries via FFI, where Word8, Word16, or Word32 types are commonly used to store bit vectors. E.g. the type @EnumSet Word16 Ordering@ represents a flag set stored in a Word16 that supports the flags @LT@, @EQ@, @GT@. This package is similar to the @bitset@ package and the @Data.Edison.Coll.EnumSet@ module in the @edison@ package, however our implementation allows you to choose the embedding type and thus the maximum size of the set.

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