.. _exhale_define__ifc4x3__rc1-definitions_8h_1a2d83ed851ce7ddde0f45f6e0c0954c57:

Define SCHEMA_IfcStairFlight_TreadLength_IS_OPTIONAL
====================================================

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


Define Documentation
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.. doxygendefine:: SCHEMA_IfcStairFlight_TreadLength_IS_OPTIONAL