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ODA IFC SDK
API Reference > OdIfc Namespace > Classes > OdIfcInstance Class > OdIfcInstance Methods > testAttr Method > OdIfcInstance::testAttr Method (const char *)
OdIfcInstance::testAttr Method (const char *)
Syntax
C++
virtual bool testAttr(const char * explicitAttrName) const;

Retrieves whether the attribute value is set or is unset.

Parameters
Description
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).

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