Function normalize [src]

Normalize a possible sequence of leading zeros. [1, 2, 3, 4, 0] -> [1, 2, 3, 4] [1, 2, 0, 0, 0] -> [1, 2] [0, 0, 0, 0, 0] -> [0]

Prototype

pub fn normalize(r: *Managed, length: usize) void

Parameters

r: *Managedlength: usize

Source

  pub fn normalize(r: *Managed, length: usize) void {
    assert(length > 0);
    assert(length <= r.limbs.len);

    var j = length;
    while (j > 0) : (j -= 1) {
        if (r.limbs[j - 1] != 0) {
            break;
        }
    }

    // Handle zero
    r.setLen(if (j != 0) j else 1);
}  