This is a rip-off of an old package called finance by Confunctionist on github. Credit is given in the external directory along with a copy of the original license.

Uses as its common value type int64 but supports various operations for float64.

Check overflow for multiplication and division.

Trying to get thoroughly tested. Also, I always forget some of the test commands:

go test -ovf=0 ## custom test flag to run overflow test
go test
go test -v
go test -v -run Mul

go test -cover
go tool cover -func=coverage.out
go test -covermode=count -coverprofile=count.out fmt
go tool cover -func=count.out
go tool cover -html=coverage.out

I alwasy forget how to run bemchmarks!

go test -bench=.
go test -bench Format  #or some regular expression