Enum CombinatoricsError 

pub enum CombinatoricsError {
    KExceedsN {
        n: u64,
        k: u64,
    },
    FactorialOverflow(u64),
    PermutationOverflow {
        n: u64,
        k: u64,
    },
    CombinationOverflow {
        n: u64,
        k: u64,
    },
}

Errors returned by checked combinatorics helpers.

Variants

KExceedsN

k must not exceed n in selection-style helpers.

Fields

n: u64

The size of the source set.

k: u64

The requested selection size.

FactorialOverflow(u64)

The factorial result overflowed u128.

PermutationOverflow

The permutation result overflowed u128.

Fields

n: u64

The size of the source set.

k: u64

The requested ordered selection size.

CombinationOverflow

The combination result overflowed u128.

Fields

n: u64

The size of the source set.

k: u64

The requested unordered selection size.

Trait Implementations

impl Clone for CombinatoricsError

fn clone(&self) -> CombinatoricsError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CombinatoricsError

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

Formats the value using the given formatter.

impl Display for CombinatoricsError

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

Formats the value using the given formatter.

impl Error for CombinatoricsError

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 CombinatoricsError

fn eq(&self, other: &CombinatoricsError) -> 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 Copy for CombinatoricsError

impl Eq for CombinatoricsError

impl StructuralPartialEq for CombinatoricsError