Enum EntropyError 

pub enum EntropyError {
    TooFewRolls(usize, usize),
    TooManyRolls(usize, usize),
    RollOutOfRange(u8, usize),
    UnsupportedConfig(u8, usize),
    DuplicateCard(u8, usize),
}

Errors returned by crate::dice_to_entropy and friends.

Manual Display (no thiserror) so the error messages stay auditable and don’t accidentally inherit upstream formatting that could leak secret bytes.

Variants

TooFewRolls(usize, usize)

Caller supplied fewer rolls than min_rolls::<FACES, N>() requires. Fields: (required, given).

TooManyRolls(usize, usize)

Caller supplied more rolls than max_rolls::<FACES, N>() permits. Fields: (allowed, given).

RollOutOfRange(u8, usize)

A roll byte was outside the valid range 1..=FACES. Fields: (value, index).

UnsupportedConfig(u8, usize)

The (FACES, N) generic combination is not one of the supported dice configurations (d6/d20 × 16/32 bytes). Fields: (FACES, N).

DuplicateCard(u8, usize)

A card byte appeared twice in the input — only relevant to deck_to_entropy. Fields: (value, second_index).

Trait Implementations

impl Debug for EntropyError

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

Formats the value using the given formatter.

impl Display for EntropyError

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

Formats the value using the given formatter.

impl Error for EntropyError

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 EntropyError

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for EntropyError

impl StructuralPartialEq for EntropyError