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resolve
=======
utility to pick overloaded C++ function calls
---------------------------------------------
.. code-block:: cpp
:caption: function: resolve C++ overload
template <typename... Args, typename F>
auto resolve( F f );
``resolve`` is a function that is meant to help users pick a single function out of a group of overloaded functions in C++. You can use it to pick overloads by specifying the signature as the first template argument. Given a collection of overloaded functions:
.. code-block:: cpp
:linenos:
int overloaded(int x);
int overloaded(int x, int y);
int overloaded(int x, int y, int z);
You can disambiguate them using ``resolve``:
.. code-block:: cpp
:linenos:
auto one_argument_func = resolve<int(int)>( overloaded );
auto two_argument_func = resolve<int(int, int)>( overloaded );
auto three_argument_func = resolve<int(int, int, int)>( overloaded );
This resolution becomes useful when setting functions on a :doc:`table<table>` or :doc:`state_view<state>`:
.. code-block:: cpp
:linenos:
sol::state lua;
lua.set_function("a", resolve<int(int)>( overloaded ) );
lua.set_function("b", resolve<int(int, int)>( overloaded ));
lua.set_function("c", resolve<int(int, int, int)>( overloaded ));
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