.. _exhale_define__ifc2x3-definitions_8h_1a7428445a7d5628db1c5535286b5f12d9:

Define SCHEMA_IfcWaterProperties_Hardness_IS_OPTIONAL
=====================================================

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


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


.. doxygendefine:: SCHEMA_IfcWaterProperties_Hardness_IS_OPTIONAL