Struct spinoso_random::NewSeedError

pub struct NewSeedError { /* fields omitted */ }

Error that indicates the system source of cryptographically secure randomness failed to read sufficient bytes to create a new seed.

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

This error is returned by new_seed. See its documentation for more details.

This error corresponds to the Ruby RuntimeError Exception class.

Examples

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

Implementations

impl NewSeedError

#[must_use]

pub const fn new() -> Self

Construct a new, default new seed error.

Examples

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

#[must_use]

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

Retrieve the exception message associated with this new seed error.

Examples

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

Trait Implementations

impl Clone for NewSeedError

fn clone(&self) -> NewSeedError

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for NewSeedError

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

Formats the value using the given formatter.

impl Default for NewSeedError

fn default() -> NewSeedError

Returns the “default value” for a type.

impl Display for NewSeedError

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

Formats the value using the given formatter.

impl Error for NewSeedError

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<NewSeedError> for Error

fn from(err: NewSeedError) -> Self

Performs the conversion.

impl Hash for NewSeedError

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 NewSeedError

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

This method returns an Ordering between self and other.

#[must_use]

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

Compares and returns the maximum of two values.

#[must_use]

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

Compares and returns the minimum of two values.

#[must_use]

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

Restrict a value to a certain interval.

impl PartialEq<NewSeedError> for NewSeedError

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

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

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

This method tests for !=.

impl PartialOrd<NewSeedError> for NewSeedError

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

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

#[must_use]

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

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

#[must_use]

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

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

#[must_use]

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

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

#[must_use]

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 NewSeedError

impl Eq for NewSeedError

impl StructuralEq for NewSeedError

impl StructuralPartialEq for NewSeedError