Struct NonZeroLayout 

pub struct NonZeroLayout { /* private fields */ }

A Layout such that the size is never zero.

The distinction between zero sized layouts and any other layout is made because it makes little sense for an allocator to concern itself with zero sized allocations. That should be managed by the user of an allocator. This also saves a branch as the allocator doesn’t need to special case a zero sized allocation.

Implementations

impl NonZeroLayout

pub fn new(layout: Layout) -> Option<Self>

pub fn nonzero_size(&self) -> NonZeroUsize

pub fn size(&self) -> usize

pub fn align(&self) -> usize

pub fn get(&self) -> Layout

Trait Implementations

impl Clone for NonZeroLayout

fn clone(&self) -> NonZeroLayout

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for NonZeroLayout

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

Formats the value using the given formatter.

impl PartialEq for NonZeroLayout

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

impl Eq for NonZeroLayout

impl StructuralPartialEq for NonZeroLayout