The 4-qubit controlled X gate.
This implementation is based on Page 21, Lemma 7.5, of .
 Barenco et al., 1995. https://arxiv.org/pdf/quant-ph/9503016.pdf
Create a new 4-qubit controlled X gate.
Return the control state of the gate as a decimal integer.
Get the decompositions of the instruction from the SessionEquivalenceLibrary.
Return definition in terms of other basic gates.
Return gate label
Get number of control qubits.
return instruction params.
Add a decomposition of the instruction to the SessionEquivalenceLibrary.
Assemble a QasmQobjInstruction
Validation and handling of the arguments and its relationship.
Add classical condition on register classical and value val.
C4XGate.control([num_ctrl_qubits, label, …])
Controlled version of this gate.
Copy of the instruction.
Invert this gate.
Return True .IFF.
DEPRECATED: use instruction.reverse_ops().
Creates a unitary gate as gate^exponent.
Return a default OpenQASM string for the instruction.
Creates an instruction with gate repeated n amount of times.
For a composite instruction, reverse the order of sub-instructions.
Return a numpy.array for the C4X gate.