tree 51fbc8dec913dd33df48d2fbb39a4a5d2321afed
parent 5b2cbc7a560cb03efa7ff3b51e614e0d60883cc3
author kortschak <dan.kortschak@adelaide.edu.au> 1499486999 +0930
committer Dan Kortschak <dan.kortschak@adelaide.edu.au> 1501117946 +0930

mat: add NonZeroDoer interfaces and implementations

Also clean up some documentation and missing type checks related to
tests for NonZeroDoers.