[Haskell-cafe] Atomically modify two MVars

[amindfv at gmail.com]

> El 10 nov 2016, a las 04:34, Lian Hung Hon <hon.lianhung at gmail.com> escribió:
> 
> Dear cafe,
> 
> Is it possible to atomically modify two MVars? (I know it can be done with TVars)

Or TMVars, if you haven't seen those.

tom