Struct ClassicalCircuit 

pub struct ClassicalCircuit<const N: usize> {
    pub classical_registers: HashMap<String, ClassicalRegister>,
    pub operations: Vec<CircuitOp>,
}

A circuit with classical control flow support

Fields

classical_registers: HashMap<String, ClassicalRegister>

Classical registers

operations: Vec<CircuitOp>

Operations (both quantum and classical)

Implementations

impl<const N: usize> ClassicalCircuit<N>

pub fn new() -> Self

Create a new circuit with classical control

pub fn add_classical_register( &mut self, name: &str, size: usize, ) -> QuantRS2Result<()>

Add a classical register

pub fn add_gate<G: GateOp + 'static>(&mut self, gate: G) -> QuantRS2Result<()>

Add a quantum gate

pub fn measure( &mut self, qubit: QubitId, register: &str, bit: usize, ) -> QuantRS2Result<()>

Add a measurement

pub fn add_conditional<G: GateOp + 'static>( &mut self, condition: ClassicalCondition, gate: G, ) -> QuantRS2Result<()>

Add a conditional gate

Adds a gate that will only execute if the classical condition is satisfied.

Arguments

• condition - The classical condition that must be true for the gate to execute
• gate - The quantum gate to execute conditionally

Errors

Returns an error if:

• The gate acts on invalid qubits (>= N)
• The condition references non-existent classical registers

Examples

circuit.add_classical_register("measurement", 1)?;
circuit.measure(QubitId(0), "measurement", 0)?;
let condition = ClassicalCondition::register_equals("measurement", 1);
circuit.add_conditional(condition, PauliX { target: QubitId(1) })?;

pub fn reset_classical(&mut self, register: &str) -> QuantRS2Result<()>

Reset a classical register to zero

pub fn num_operations(&self) -> usize

Get the number of operations

Trait Implementations

impl<const N: usize> Default for ClassicalCircuit<N>

fn default() -> Self

Returns the “default value” for a type.