Enum Layout 

pub enum Layout {
    RowMajor,
    ColMajor,
}

How an array’s shape indexes its flat buffer.

The shape is always the LOGICAL one — rows leading, the contract every frontend and every diagnostic reads by — and the layout says only where element (i0 … ik) sits in the buffer. Rank 0 and rank 1 have one possible answer and are always Layout::RowMajor.

Variants

RowMajor

The last axis varies fastest: offset ((i0 * s1) + i1) * s2 + …. Everything in the runtime reads this unless it has asked.

ColMajor

The FIRST axis varies fastest, which for a matrix means each column is contiguous — the layout a table of Arrow columns already has, and the layout |: produces by flipping this flag instead of moving 160 MB.

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 Copy for Layout

impl Debug for Layout

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

Formats the value using the given formatter.

impl Default for Layout

fn default() -> Layout

Returns the “default value” for a type.

impl Eq for Layout

impl PartialEq for Layout

fn eq(&self, other: &Layout) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Layout