Method count

include/boost/compute/container/dynamic_bitset.hpp:108–120

Returns the number of set bits (i.e. '1') in the bitset.

    /// Returns the number of set bits (i.e. '1') in the bitset.
    size_type count(command_queue &queue) const
    {
        ulong_ count = 0;
        transform_reduce(
            m_bits.begin(),
            m_bits.end(),
            &count,
            popcount<block_type>(),
            plus<ulong_>(),
            queue
        );
        return static_cast<size_type>(count);
    }

    /// Resizes the bitset to contain \p num_bits. If the new size is greater
    /// than the current size the new bits are set to zero.