ClassicalRegister
class qiskit.circuit.ClassicalRegister(size=None, name=None, bits=None)
Bases: Register
Implement a classical register.
Create a new generic register.
Either the size
or the bits
argument must be provided. If size
is not None, the register will be pre-populated with bits of the correct type.
Parameters
- size (int) – Optional. The number of bits to include in the register.
- name (str) – Optional. The name of the register. If not provided, a unique name will be auto-generated from the register type.
- bits (list[Bit]) – Optional. A list of Bit() instances to be used to populate the register.
Raises
- CircuitError – if both the
size
andbits
arguments are provided, or if neither are. - CircuitError – if
size
is not valid. - CircuitError – if
name
is not a valid name according to the OpenQASM spec. - CircuitError – if
bits
contained duplicated bits. - CircuitError – if
bits
contained bits of an incorrect type.
Attributes
instances_counter
Default value: count(0)
name
Get the register name.
prefix
Default value: 'c'
size
Get the register size.
Methods
index
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