Function rotate [src]

In-place rotation of the values in an array ([0 1 2 3] becomes [1 2 3 0] if we rotate by 1) Assumes 0 <= amount <= items.len

Prototype

pub fn rotate(comptime T: type, items: []T, amount: usize) void

Parameters

T: typeitems: []Tamount: usize

Example

 test rotate {
    var arr = [_]i32{ 5, 3, 1, 2, 4 };
    rotate(i32, arr[0..], 2);

    try testing.expect(eql(i32, &arr, &[_]i32{ 1, 2, 4, 5, 3 }));
}

Source

  pub fn rotate(comptime T: type, items: []T, amount: usize) void {
    reverse(T, items[0..amount]);
    reverse(T, items[amount..]);
    reverse(T, items);
}  