[Haskell-cafe] Maybe a, The Rationale
zao at acc.umu.se
Sat May 10 22:24:38 EDT 2008
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  library in C++, which
provides a lovely Maybe-like class template called "optional".
Lars Viklund | zao at acc.umu.se | 070-310 47 07
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