Struct Layout 

pub(crate) struct Layout {
    size: usize,
    align: usize,
}

A version of alloc::alloc::Layout that can be used in the const position.

Fields

size: usize

align: usize

Implementations

impl Layout

pub(crate) const fn from_size_align(size: usize, align: usize) -> Self

Creates a new Layout with the given size and alignment.

pub(crate) const fn new<T>() -> Self

Creates a new Layout for the given sized type.

pub(crate) const unsafe fn into_std(self) -> StdLayout

Convert this into the standard library’s layout type.

Safety

• align must be non-zero and a power of two.
• When rounded up to the nearest multiple of align, the size must not overflow.

pub(crate) const fn align(&self) -> usize

Get the alignment of this layout.

pub(crate) const fn size(&self) -> usize

Get the size of this layout.

pub(crate) const fn extend(self, other: Layout) -> Option<(Layout, usize)>

Returns the layout for a followed by b and the offset of b.

This function was adapted from the Layout::extend(): https://doc.rust-lang.org/nightly/std/alloc/struct.Layout.html#method.extend

pub(crate) const fn padding_needed_for(self, align: usize) -> usize

Returns the padding after layout that aligns the following address to align.

This function was adapted from the Layout::padding_needed_for(): https://doc.rust-lang.org/nightly/std/alloc/struct.Layout.html#method.padding_needed_for

Trait Implementations

impl Clone for Layout

fn clone(&self) -> Layout

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Layout

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

Formats the value using the given formatter.

impl Copy for Layout