I blogged about this, and other uses for mutable default arguments (with tongue somewhat in cheek) a few weeks ago: http://inglesp.github.com/2012/03/24/mutable

I blogged about this, and other uses for mutable default arguments (with tongue somewhat in cheek) a few weeks ago: http://inglesp.github.com/2012/03/24/mutable-default-arguments.html http://inglesp.github.com/2012/03/24/mutable-default-argumen...