.. _exhale_define__ifc4x3__rc1-definitions_8h_1ae8c31f439a7efaa2eb35962fcc3fd49a:

Define SCHEMA_IfcStairFlight_NumberOfTreads_IS_OPTIONAL
=======================================================

- Defined in :ref:`file_src_ifcparse_Ifc4x3_rc1-definitions.h`


Define Documentation
--------------------


.. doxygendefine:: SCHEMA_IfcStairFlight_NumberOfTreads_IS_OPTIONAL