.. _exhale_define__ifc2x3-definitions_8h_1a656043f5b54379c8c7556f09a152abc2:

Define SCHEMA_IfcWorkControl_Duration_IS_OPTIONAL
=================================================

- Defined in :ref:`file_src_ifcparse_Ifc2x3-definitions.h`


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


.. doxygendefine:: SCHEMA_IfcWorkControl_Duration_IS_OPTIONAL