.. _exhale_define__ifc2x3-definitions_8h_1a037e9a72be37cecf30818340640c2f76:

Define SCHEMA_IfcConstraintRelationship_Description_IS_OPTIONAL
===============================================================

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


Define Documentation
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.. doxygendefine:: SCHEMA_IfcConstraintRelationship_Description_IS_OPTIONAL