maybe monad_plus

This is the C++ template metaprogramming equivalent of Haskell's Maybe monad plus.

General information

• header: <mpllibs/metamonad/maybe.hpp>
• tag of monad plus: maybe_tag
• mzero: nothing
• mplus:
  • When both arguments are nothing, the result is nothing
  • When one argument is nothing, the result is the other argument
  • When none of the arguments is nothing, the result is the first argument

Copyright Abel Sinkovics (abel at elte dot hu) 2011. Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt

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