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   Generated automatically by cpp2rst

.. highlight:: c
.. role:: red
.. role:: green
.. role:: param


.. _triqs__atom_diag__atom_diag__flatten_subspace_index:

triqs::atom_diag::atom_diag::flatten_subspace_index
===================================================

*#include <triqs/atom_diag/atom_diag.hpp>*



**Synopsis**

 .. rst-class:: cppsynopsis

       | int :red:`flatten_subspace_index` (int :param:`sp_index`, int :param:`i`) const





Returns the state index in the full Hilbert space given a subspace index and an inner index





Parameters
^^^^^^^^^^

 * :param:`sp_index` Index of the invariant subspace.

 * :param:`i` State index within the subspace.