Enum SelectionError 

pub enum SelectionError {
    InsufficentFunds,
    IterationLimitReached,
    MaxWeightExceeded,
    Overflow(OverflowError),
    ProgramError,
    SolutionNotFound,
}

Error types. Error types returned during the selection process when no match is found.

Variants

InsufficentFunds

The sum of values passed is less than the target. That is, There is no possible solution.

IterationLimitReached

The maximum iteration count was reached returning no result. That is, A solution may exist but could not be found in a reasonable time.

MaxWeightExceeded

The weight of a selection exceeded the max weight limit returning no result. That is, No solutions could be found that are less than the max_weight parameter.

Overflow(OverflowError)

A numeric overflow occurred and the selection process aborted returning no result.

ProgramError

A generic error that should not happen assuming code paths behave as known.

SolutionNotFound

Search space was exhausted without yielding a result. That is, iteration limit was not hit and yet no solution could be found.

Trait Implementations

impl Clone for SelectionError

fn clone(&self) -> SelectionError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SelectionError

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

Formats the value using the given formatter.

impl PartialEq for SelectionError

fn eq(&self, other: &SelectionError) -> 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 StructuralPartialEq for SelectionError