.. index::  py::builtins::operator ->* [py::builtins::in]

.. _doxycast_pypp_namespacepy_1_1builtins_1af5317dcadb707a5a8dc1488617d98e61:

.. _py-builtins-operator-pointer_to_member-in:

*py::builtins::*\ operator ->* (:ref:`py::builtins::in <py-builtins-in>`)
=========================================================================

*Defined in* ``<pypp/builtins/min.hpp>``

.. code-block:: cpp

     template <class element_t, class container_t>
     bool operator ->* (const element_t& element, const in<container_t>& container);

Returns whether a iterable object contains a value.


Template parameters
-------------------

``element_t``: Type of the value to find.

``container_t``: Type of the container.


Parameters
----------

``element``: The value to find.

``container``: An ``py::builtins::in`` object referencing an iterable
object.


Return value
------------

Whether a iterable object contains a value.


Complexity
----------

Linear in the size of ``container.container()``.


Example
-------

.. code-block:: cpp

     #include <pypp/builtins/list.hpp>
     #include <pypp/builtins/in.hpp>
     #include <pypp/builtins/print.hpp>

     int main()
     {
         py::list<int> nums = {0, 1, 2, 3, 4, 5, 6};

         // Equivalent to ``4 in nums`` in Python
         py::print(4 ->* py::in(nums));
     }

**Output**:

.. code-block:: text

     true