Struct Array2D

pub struct Array2D<T, Data: Deref<Target = [T]> = Vec<T>> { /* private fields */ }

2D array with row-major layout.

Implementations

impl<T: Default + Clone> Array2D<T>

pub fn new(rows: usize, cols: usize) -> Self

Create a new 2D array of the given size initialized with default values.

pub fn zeroes(rows: usize, cols: usize) -> Self

where T: Zeroable,

Create a new 2D array of the given size initialized with zeroes.

impl<T, Data: Deref<Target = [T]>> Array2D<T, Data>

pub fn rows(&self) -> usize

Returns the number of rows in the array.

pub fn cols(&self) -> usize

Returns the number of columns in the array.

pub fn get_row(&self, i: usize) -> &[T]

Returns the row at the given index.

pub fn iter_rows(&self) -> impl Iterator<Item = &[T]>

Returns an iterator over the rows of the array.

pub unsafe fn get_unchecked(&self, i: usize, j: usize) -> &T

Return the element at the given row and column without bounds checking.

Safety

The caller must ensure that i and j are less than the number of rows and columns respectively.

pub fn reshape(&self, rows: usize, cols: usize) -> Option<Array2D<T, &[T]>>

View of the array in a different shape, underlying elements stay the same.

impl<T, Data: DerefMut<Target = [T]>> Array2D<T, Data>

pub fn get_row_mut(&mut self, i: usize) -> &mut [T]

Returns the mutable row at the given index.

pub unsafe fn get_unchecked_mut(&mut self, i: usize, j: usize) -> &mut T

Return the mutable element at the given row and column without bounds checking.

Safety

The caller must ensure that i and j are less than the number of rows and columns respectively.

pub fn reshape_mut( &mut self, rows: usize, cols: usize, ) -> Option<Array2D<T, &mut [T]>>

Mutable view of the array in a different shape, underlying elements stay the same.

impl<T: Default + Clone + AddAssign, Data: Deref<Target = [T]>> Array2D<T, Data>

pub fn sum_rows(&self) -> Vec<T>

Returns the sum of the elements in each row.

Trait Implementations

impl<T: Debug, Data: Debug + Deref<Target = [T]>> Debug for Array2D<T, Data>

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

Formats the value using the given formatter.

impl<T, Data: Deref<Target = [T]>> Index<(usize, usize)> for Array2D<T, Data>

type Output = T

The returned type after indexing.

fn index(&self, (i, j): (usize, usize)) -> &Self::Output

Performs the indexing (container[index]) operation.

impl<T, Data: DerefMut<Target = [T]>> IndexMut<(usize, usize)> for Array2D<T, Data>

fn index_mut(&mut self, (i, j): (usize, usize)) -> &mut Self::Output

Performs the mutable indexing (container[index]) operation.