Method count_set_bits

arrow-buffer/src/buffer/boolean.rs:438–441

Returns the number of set bits in this buffer

(&self)

    /// Returns the number of set bits in this buffer
    pub fn count_set_bits(&self) -> usize {
        self.buffer
            .count_set_bits_offset(self.bit_offset, self.bit_len)
    }

    /// Finds the position of the n-th set bit (1-based) starting from `start` index.
    /// If fewer than `n` set bits are found, returns the length of the buffer.