.. _mpi_t_category_get_categories:


MPI_T_category_get_categories
=============================

.. include_body

:ref:`MPI_T_category_get_categories` |mdash| Query which categories are in a
category

.. The following file was automatically generated
.. include:: ./bindings/mpi_t_category_get_categories.rst

INPUT PARAMETERS
----------------
* ``cat_index``: Index of the category to be queried.
* ``len``: The length of the indices array.

OUTPUT PARAMETERS
-----------------
* ``indices``: An integer array of size len, indicating category indices.

DESCRIPTION
-----------

:ref:`MPI_T_category_get_categories` can be used to query which other
categories are in a category.


ERRORS
------

:ref:`MPI_T_category_get_categories` will fail if:

* ``MPI_T_ERR_NOT_INITIALIZED``: The MPI Tools interface not initialized

* ``MPI_T_ERR_INVALID_INDEX``: The category index is invalid
