.. _exhale_define__ifc4x3__rc1-definitions_8h_1a48086238348e4945a8a6e45b8834db2d:

Define SCHEMA_IfcProxy_Tag_IS_OPTIONAL
======================================

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


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


.. doxygendefine:: SCHEMA_IfcProxy_Tag_IS_OPTIONAL