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metatable_key
=============
*a key for setting and getting an object's metatable*
.. code-block:: cpp
struct metatable_key_t {};
const metatable_key_t metatable_key;
You can use this in conjunction with :doc:`sol::table<table>` to set/get a metatable. Lua metatables are powerful ways to override default behavior of objects for various kinds of operators, among other things. Here is an entirely complete example, showing getting and working with a :doc:`usertype<usertype>`'s metatable defined by sol:
.. literalinclude:: ../../../examples/source/metatable_key_low_level.cpp
:caption: messing with metatables
:name: sol-metatable_key-eg
:linenos:
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