WhileLoopOp¶

class WhileLoopOp(condition, body, label=None)[소스]¶

기반 클래스: ControlFlowOp

A circuit operation which repeatedly executes a subcircuit (body) until a condition (condition) evaluates as False.

매개변수

condition (Union[Tuple[ClassicalRegister, int], Tuple[Clbit, int], Tuple[Clbit, bool]]) – A condition to be checked prior to executing body. Can be specified as either a tuple of a ClassicalRegister to be tested for equality with a given int, or as a tuple of a Clbit to be compared to either a bool or an int.
body (QuantumCircuit) – The loop body to be repeatedly executed.
label (Optional[str]) – An optional label for identifying the instruction.

The classical bits used in condition must be a subset of those attached to body.

Circuit symbol:

     ┌─────────────┐
q_0: ┤0            ├
     │             │
q_1: ┤1            ├
     │  while_loop │
q_2: ┤2            ├
     │             │
c_0: ╡0            ╞
     └─────────────┘

Create a new instruction.

매개변수

name (str) – instruction name
num_qubits (int) – instruction’s qubit width
num_clbits (int) – instruction’s clbit width
params (list[int|float|complex|str|ndarray|list|ParameterExpression]) – list of parameters
duration (int or float) – instruction’s duration. it must be integer if unit is 〈dt〉
unit (str) – time unit of duration
label (str or None) – An optional label for identifying the instruction.

예외 발생

CircuitError – when the register is not in the correct format.
TypeError – when the optional label is provided, but it is not a string.

Methods

`add_decomposition`	Add a decomposition of the instruction to the SessionEquivalenceLibrary.
`assemble`	Assemble a QasmQobjInstruction
`broadcast_arguments`	Validation of the arguments.
`c_if`	Set a classical equality condition on this instruction between the register or cbit `classical` and value `val`.
`copy`	Copy of the instruction.
`inverse`	Invert this instruction.
`is_parameterized`	Return True .IFF.
`qasm`	Return a default OpenQASM string for the instruction.
`repeat`	Creates an instruction with gate repeated n amount of times.
`replace_blocks`	Replace blocks and return new instruction.
`reverse_ops`	For a composite instruction, reverse the order of sub-instructions.
`soft_compare`	Soft comparison between gates.
`validate_parameter`	Instruction parameters has no validation or normalization.

Attributes

blocks¶

condition_bits¶: Get Clbits in condition.

decompositions¶: Get the decompositions of the instruction from the SessionEquivalenceLibrary.

definition¶: Return definition in terms of other basic gates.

duration¶: Get the duration.

label¶: Return instruction label

name¶: Return the name.

num_clbits¶: Return the number of clbits.

num_qubits¶: Return the number of qubits.

params¶

unit¶: Get the time unit of duration.