sol2/docs/source/api/optional.rst

optional<T>
===========

This is an implemention of `optional from the standard library`_. If it detects that a proper optional exists, it will attempt to use it. This is mostly an implementation detail, used in the :ref:`sol::stack::check_get<stack-check-get>` and :ref:`sol::stack::get\<optional\<T>><stack-get>` and ``sol::optional<T> maybe_value = table["arf"];`` implementations for additional safety reasons.

See `this example here`_ for a demonstration on how to use it and other features!

.. _optional from the standard library: http://en.cppreference.com/w/cpp/utility/optional
.. _this example here: https://github.com/ThePhD/sol2/blob/develop/examples/optional_with_iteration.cpp
full-on optional support. so much support it's coming through my eyeballs. Goodness. Support for c_call wrapper to be a thing. 2016-03-30 12:31:18 +08:00			`optional<T>`
			`===========`
documentation cleanup 2016-03-25 22:58:33 +08:00
unused variable warnings turned errors killing all the tests 2017-03-20 06:41:52 +08:00			This is an implemention of `optional from the standard library`_. If it detects that a proper optional exists, it will attempt to use it. This is mostly an implementation detail, used in the :ref:`sol::stack::check_get<stack-check-get>` and :ref:`sol::stack::get\<optional\<T>><stack-get>` and ``sol::optional<T> maybe_value = table["arf"];`` implementations for additional safety reasons.
full-on optional support. so much support it's coming through my eyeballs. Goodness. Support for c_call wrapper to be a thing. 2016-03-30 12:31:18 +08:00
unused variable warnings turned errors killing all the tests 2017-03-20 06:41:52 +08:00			See `this example here`_ for a demonstration on how to use it and other features!

			`.. _optional from the standard library: http://en.cppreference.com/w/cpp/utility/optional`
			`.. _this example here: https://github.com/ThePhD/sol2/blob/develop/examples/optional_with_iteration.cpp`