Function findFirstSet [src]

Finds the index of the first set bit. If no bits are set, returns null.

Prototype

pub fn findFirstSet(self: Self) ?usize

Parameters

self: Self

Source

  pub fn findFirstSet(self: Self) ?usize {
    var offset: usize = 0;
    var mask = self.masks;
    while (offset < self.bit_length) {
        if (mask[0] != 0) break;
        mask += 1;
        offset += @bitSizeOf(MaskInt);
    } else return null;
    return offset + @ctz(mask[0]);
}  