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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

toggleFirstSet

Public Function
std.bit_set.Array.toggleFirstSet
pub fn toggleFirstSet(self: *Self) ?usize

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

Params

File

bit_set.zig:573
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        pub fn toggleFirstSet(self: *Self) ?usize {
            var offset: usize = 0;
            const mask = for (&self.masks) |*mask| {
                if (mask.* != 0) break mask;
                offset += @bitSizeOf(MaskInt);
            } else return null;
            const index = @ctz(mask.*);
            mask.* &= (mask.* - 1);
            return offset + index;
        }