Struct sudoku_solver::board::Board

pub struct Board { /* fields omitted */ }

A representation of a puzzle or solution.

Implementations

impl Board

pub fn get_cell(&self, x: usize, y: usize) -> u8

Get the contents of the cell at the given coordinates.

This returns the contents of the cell at column x and row y. A zero represents a cell which is unfilled, otherwise the value will be between 1 and 9 inclusive.

Example

let board = Board::from(&[
    [0, 2, 0, 0, 0, 0, 0, 0, 0], // row 1
    [0, 0, 0, 6, 0, 0, 0, 0, 3], // row 2
    [0, 7, 4, 0, 8, 0, 0, 0, 0], // row 3
    [0, 0, 0, 0, 0, 3, 0, 0, 2], // row 4
    [0, 8, 0, 0, 4, 0, 0, 1, 0], // row 5
    [6, 0, 0, 5, 0, 0, 0, 0, 0], // row 6
    [0, 0, 0, 0, 1, 0, 7, 8, 0], // row 7
    [5, 0, 0, 0, 0, 9, 0, 0, 0], // row 8
    [0, 0, 0, 0, 0, 0, 0, 4, 0], // row 9
]);

assert_eq!(board.get_cell(1, 0), 2);

pub fn set_cell(&mut self, x: usize, y: usize, value: u8)

Set the contents of the cell at the given coordinates to the given value.

Example

let mut board = Board::from(&[[0u8; BOARD_SIZE]; BOARD_SIZE]);
board.set_cell(1, 1, 9);
assert_eq!(board.get_cell(1, 1), 9);

pub fn with_cell(&self, x: usize, y: usize, value: u8) -> Board

Construct a board which is obtained from the input board by modifying a single cell.

The returned board is the same as the input one, except that the cell at column x and row y will contain value.

Example

let board = Board::from(&[[0u8; BOARD_SIZE]; BOARD_SIZE]);
let board = board.with_cell(1, 1, 9);
assert_eq!(board.get_cell(1, 1), 9);

Trait Implementations

impl Clone for Board

fn clone(&self) -> Board

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Board

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

Formats the value using the given formatter.

impl Default for Board

fn default() -> Board

Returns the “default value” for a type.

impl Display for Board

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

Formats the value using the given formatter.

impl From<&'_ [[u8; 9]; 9]> for Board

Construct a Board from a 2D array.

fn from(array_2d: &[[u8; 9]; 9]) -> Self

Create a Board with the given content.

The cells parameter is a two dimensional array slice.

Example

let board = Board::from(&[[0u8; BOARD_SIZE]; BOARD_SIZE]);

impl From<Board> for SolutionIter

From implementation for SolutionIter.

fn from(board: Board) -> Self

Performs the conversion.

impl Hash for Board

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given Hasher.

impl PartialEq<Board> for Board

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl Copy for Board

impl Eq for Board

impl StructuralEq for Board

impl StructuralPartialEq for Board