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This is an example of documentation generated by ZigDoc, an alternative to Zig's built-in Auto Doc feature. See also examples in other modes/formats. The project being documented here (as the example) is the Zig standard library. Public Function

findLastSet

Public Function
std.bit_set.ArrayBitSet.findLastSet
pub fn findLastSet(self: Self) ?usize

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

Params

File

bit_set.zig:555
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        pub fn findLastSet(self: Self) ?usize {
            if (bit_length == 0) return null;
            const bs = @bitSizeOf(MaskInt);
            var len = bit_length / bs;
            if (bit_length % bs != 0) len += 1;
            var offset: usize = len * bs;
            var idx: usize = len - 1;
            while (self.masks[idx] == 0) : (idx -= 1) {
                offset -= bs;
                if (idx == 0) return null;
            }
            offset -= @clz(self.masks[idx]);
            offset -= 1;
            return offset;
        }