Query< T > Class Template Reference

This class can be used to return the result of a query that can fail. Objects of this class can convert themselves to the result type T. Client code can check for a valid result; if it doesn't, and the result is valid, no problem. But if the result is invalid you will print an error message and terminate. More...

#include <Query.h>

Public Member Functions
	Query (const T &)
	operator T () const
bool	isValid () const

Private Attributes
bool	m_failed
T	m_instance

Detailed Description

template<class T>
class Query< T >

This class can be used to return the result of a query that can fail. Objects of this class can convert themselves to the result type T. Client code can check for a valid result; if it doesn't, and the result is valid, no problem. But if the result is invalid you will print an error message and terminate.

Joe Boudreau based on Barton & Nackman's "Scientific and Engineering C++"

Definition at line 22 of file Query.h.

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The documentation for this class was generated from the following file:

• /builds/GeoModelDev/GeoModelCore/GeoModelKernel/GeoModelKernel/Query.h