qiskit/circuit/instruction.py
def c_if(self, classical, val):
        """Add classical control on register classical and value val."""
        if not isinstance(classical, ClassicalRegister):
            raise QiskitError("c_if must be used with a classical register")
        if val < 0:
            raise QiskitError("control value should be non-negative")
        self.control = (classical, val)
        return self
def c_if(self, classical, val):
        if not isinstance(classical, ClassicalRegister):
            raise QiskitError("c_if must be used with a classical register")
        if val < 0:
            raise QiskitError("control value should be non-negative")
        self.control = (classical, val)
        return self
def c_if ( self , classical , val ) : if not isinstance ( classical , ClassicalRegister ) : raise QiskitError ( "c_if must be used with a classical register" ) if val < 0 : raise QiskitError ( "control value should be non-negative" ) self . control = ( classical , val ) return self
Add classical control on register classical and value val.
Add classical control on register classical and value val .