Enum QuantumError 

pub enum QuantumError {
    ZeroStateVector,
    QubitIndexOutOfRange {
        index: usize,
        n_qubits: usize,
    },
    DimensionMismatch {
        expected: usize,
        actual: usize,
    },
    BasisIndexOutOfRange {
        index: usize,
        dim: usize,
    },
    TooManyQubits(usize),
    InvalidQubitCount(usize),
    GateArityMismatch {
        gate_qubits: usize,
        supplied: usize,
    },
    DuplicateQubitIndex {
        index: usize,
    },
    NonUnitaryGate {
        deviation: f64,
    },
    CircuitRegisterMismatch {
        circuit_qubits: usize,
        register_qubits: usize,
    },
    DomainError(String),
}

Errors that can arise from quantum simulation operations.

Variants

ZeroStateVector

The statevector has zero norm and cannot be normalised.

QubitIndexOutOfRange

A qubit index was out of range for the register size.

Fields

index: usize

The supplied index.

n_qubits: usize

Number of qubits in the register.

DimensionMismatch

The statevector dimension did not match 2^n_qubits.

Fields

expected: usize

Expected dimension.

actual: usize

Actual dimension encountered.

BasisIndexOutOfRange

A basis-state index exceeded the Hilbert-space dimension.

Fields

index: usize

Supplied index.

dim: usize

Hilbert-space dimension 2^n.

TooManyQubits(usize)

Too many qubits were requested (would overflow usize).

InvalidQubitCount(usize)

An invalid qubit count was supplied (e.g. 0).

GateArityMismatch

Gate arity does not match the number of target qubits supplied.

Fields

gate_qubits: usize

Number of qubits the gate acts on.

supplied: usize

Number of target indices supplied by the caller.

DuplicateQubitIndex

Two target-qubit indices in a gate application were identical.

Fields

index: usize

The repeated index.

NonUnitaryGate

The gate matrix is not unitary (failed validation).

Fields

deviation: f64

Maximum entry-wise deviation from U†U = I.

CircuitRegisterMismatch

A circuit operation was applied to a register with the wrong qubit count.

Fields

circuit_qubits: usize

Circuit qubit count.

register_qubits: usize

Register qubit count.

DomainError(String)

A general domain / parameter error.

Trait Implementations

impl Clone for QuantumError

fn clone(&self) -> QuantumError

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for QuantumError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for QuantumError

fn fmt(&self, __formatter: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Error for QuantumError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl PartialEq for QuantumError

fn eq(&self, other: &QuantumError) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for QuantumError