Perform the TargetOperation on all qubits except the qubit at ControlIndex if the qubit at ControlIndex is |1>. Else there is no change in the register. This arbitrary application of a single qubit operator to n qubits in a register based on a control qubit is called ControlU.

IQuantumRegister OperationControlledU(
	IQubitOperation TargetOperation,
	int ControlIndex
)

Function OperationControlledU ( _
	TargetOperation As IQubitOperation, _
	ControlIndex As Integer _
) As IQuantumRegister

IQuantumRegister^ OperationControlledU(
	IQubitOperation^ TargetOperation, 
	int ControlIndex
)