QoreNullNode.h File Reference

#include <qore/AbstractQoreNode.h>

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Classes
class	QoreNullNode
	Qore's SQL "NULL" parse tree/value type, not-referenced counted, not dynamically allocated. More...

Functions
static bool	is_null (const AbstractQoreNode *n)
	use this function to test for NULL
static QoreNullNode *	null ()
	returns a pointer to Null

Variables
DLLEXPORT QoreNullNode	Null
	the global and unique NULL value in Qore

Detailed Description

defines the QoreNullNode class