Struct spinoso_random::UrandomError

pub struct UrandomError { /* private fields */ }

Error that indicates the system source of cryptographically secure randomness failed to read the requested bytes.

This can occur if the source is unknown or lacks sufficient entropy.

This error is returned by urandom(). See its documentation for more details.

This error corresponds to the Ruby RuntimeError Exception class.

Examples

let err = UrandomError::new();
assert_eq!(err.message(), "failed to get urandom");

Implementations

impl UrandomError

pub const fn new() -> Self

Construct a new, default urandom error.

Examples

const ERR: UrandomError = UrandomError::new();
assert_eq!(ERR.message(), "failed to get urandom");

pub const fn message(self) -> &'static str

Retrieve the exception message associated with this urandom error.

Examples

let err = UrandomError::new();
assert_eq!(err.message(), "failed to get urandom");

Trait Implementations

impl Clone for UrandomError

fn clone(&self) -> UrandomError

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for UrandomError

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

Formats the value using the given formatter.

impl Default for UrandomError

fn default() -> UrandomError

Returns the “default value” for a type.

impl Display for UrandomError

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

Formats the value using the given formatter.

impl Error for UrandomError

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

The lower-level source of this error, if any.

fn backtrace(&self) -> Option<&Backtrace>

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

Returns a stack backtrace, if available, of where this error occurred.

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

impl From<UrandomError> for Error

fn from(err: UrandomError) -> Self

Performs the conversion.

impl Hash for UrandomError

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given Hasher.

impl Ord for UrandomError

fn cmp(&self, other: &UrandomError) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

Restrict a value to a certain interval.

impl PartialEq<UrandomError> for UrandomError

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl PartialOrd<UrandomError> for UrandomError

fn partial_cmp(&self, other: &UrandomError) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

This method tests less than (for self and other) and is used by the < operator.

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

This method tests less than or equal to (for self and other) and is used by the <= operator.

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

This method tests greater than (for self and other) and is used by the > operator.

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

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for UrandomError

impl Eq for UrandomError

impl StructuralEq for UrandomError

impl StructuralPartialEq for UrandomError