Services Blog About ERT 29 min Date 2022-08-22 money software Dealing with money in software is difficult and dangerous. This post contains an overview of the problems you will run into eventually when writing software that deals with money. It describes potential representations, relevant trade-offs, and recommends ways of correctly implementing common operations. The post is prescriptive, so that you can use it to write your own library for dealing with amounts of money. more This post is an update of my previous post about dealing with money in software . It newly includes an overview of possible representations, better recommendations, and an addendum of tests. Money is a surprisingly complex, but more importantly very dangerous subject for programs to deal with. It is hard to get right, but worth paying close attention to. There are all sorts of in...