This latest post about statically typing constraints beyond mere 
floating-point values reminds me that the F# programming language just got 
another new feature called "measures" that lets you add phantom types 
representing units of measure and even handles arithmetic over them for you.

I have not used measures yet myself but I was just wondering if the OCaml 
world had already seen anything like this?

I had been under the impression that this could not be made to work but, 
obviously, I was wrong!

-- 
Dr Jon Harrop, Flying Frog Consultancy Ltd.
http://www.ffconsultancy.com/?e