On 9 April 2013 20:50, Timon Gehr <timon.g...@gmx.ch> wrote: > On 04/09/2013 12:28 PM, Manu wrote: > >> ... >> >> >> There's nothing 'pure' about a function that has side effects. >> > > If it has the same side effects every time it is called with the same > arguments, then there is something pure about it.
But it doesn't. It could do anything when called a second time, same arguments or not. The only thing it can't do is escape a variable. That sounds more like 'scope' to me than 'pure'.