Enum UnderflowPolicy 

pub enum UnderflowPolicy {
    ReturnNone,
    Panic,
}

Underflow behaviour policy for bounded queues.

Variants

ReturnNone

Return None on empty.

Panic

Panic on underflow (debug only).

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 Copy for UnderflowPolicy

impl Debug for UnderflowPolicy

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

Formats the value using the given formatter.

impl Eq for UnderflowPolicy

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 StructuralPartialEq for UnderflowPolicy