Enum UnderflowPolicy 

pub enum UnderflowPolicy {
    ReturnNone,
    Panic,
}

Политика поведения при пустой очереди

Variants

ReturnNone

Вернуть None

Panic

Вызвать панику (только для отладки)

Trait Implementations

impl Clone for UnderflowPolicy

fn clone(&self) -> UnderflowPolicy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for UnderflowPolicy

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

Formats the value using the given formatter.

impl PartialEq for UnderflowPolicy

fn eq(&self, other: &UnderflowPolicy) -> 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 UnderflowPolicy

impl Eq for UnderflowPolicy

impl StructuralPartialEq for UnderflowPolicy