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ODA IFC SDK
API Reference > OdDAI Namespace > Classes > ApplicationInstance Class > ApplicationInstance Methods > testAttr Method > ApplicationInstance::testAttr Method (const AttributePtr&)
ApplicationInstance::testAttr Method (const AttributePtr&)
Syntax
C++
virtual bool testAttr(const AttributePtr& attribute) const;

Retrieves whether the attribute value is set or is unset.

Parameters
Description
attribute
[in] An attribute type.

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

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