API Reference > OdIfc4x1 Namespace > Classes > IfcRelAggregates Class > IfcRelAggregates Methods > testAttr Method > IfcRelAggregates::testAttr Method (char *)
IfcRelAggregates::testAttr Method (char *)
Syntax
C++
virtual bool testAttr(const char * explicitAttrName) const;
Parameters 
Description 
const char * explicitAttrName 
[in] An ANSI string that contains the attribute name.  

true if the attribute has a value; otherwise, the method returns false (the attribute value is not set).

Retrieves whether the attribute value is set or is unset.

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