
On Sun, May 11, 2008 at 02:59:32AM +0100, Eric Stansifer wrote:
I definitely agree. After I'd been learning Haskell for 6 months and then wrote a program in Java & C++, almost the first thing I did was code up a generic Maybe<T> class in each language. It is so much clearer and more obvious to _explicitly_ have no value (Maybe.Nothing()) as opposed to _implicitly_ having no value (null). Now I find my Java & C++ Maybe<T> class indispensable when I am programming in those languages.
You may want to take a peek at the Boost.Optional [1] library in C++, which provides a lovely Maybe-like class template called "optional". [1] http://www.boost.org/doc/libs/1_35_0/libs/optional/doc/html/index.html -- Lars Viklund | zao@acc.umu.se | 070-310 47 07