🔒 Allocators and Owned Data

Zig structs are value types — they live on the stack by default. Define a Point struct and write functions that operate on it.

const Point = struct {
    x: i32,
    y: i32,
};
const p = Point{ .x = 1, .y = 2 };

Note: struct values are passed by value in Zig. To modify one, accept a pointer *Point.

Points below are written (x, y).

translate

`p`	`dx`	`dy`	result
`(1, 2)`	`3`	`-1`	`(4, 1)`

manhattanDistance

`a`	`b`	result
`(0, 0)`	`(3, 4)`	`7`
`(5, 5)`	`(5, 5)`	`0`

Return a new Point with translated coordinates: Point{ .x = p.x + dx, .y = p.y + dy }.

Zig

/// Return a new point translated by (dx, dy)
fn translate(p: Point, dx: i32, dy: i32) Point {
    return Point{ .x = p.x + dx, .y = p.y + dy };
}

/// Return the Manhattan distance between two points
fn manhattanDistance(a: Point, b: Point) u32 {
    const dx = if (a.x > b.x) a.x - b.x else b.x - a.x;
    const dy = if (a.y > b.y) a.y - b.y else b.y - a.y;
    return @intCast(dx + dy);
}

Point Translation

Rectangle Summary