Review 2: Bitwise operators

[jzmaddock]

Bitwise operators are defined but don't seem to be documented. A rationale for their inclusion would be nice too.

These look surprising to me - you can't use bitwise operators on binary floating point, so why here?

[mborland]

They are useful for a few implementation things and they do have tests in decTest. I just double checked IEEE 754 and there's no reference to them so they should probably get removed and add a few more friends.