>operator~</a>() const;
    size_type <a href="#count">count</a>() const noexcept;

    reference <a href="#bracket">operator[]</a>(size_type pos);
    bool <a href="#const-bracket">operator[]</a>(size_type pos) const;

    unsigned long <a href="#to_ulong">to_ulong</a>() const;

    size_type <a href="#size">size</a>() const noexcept;
    size_type <a href="#num_blocks">num_blocks</a>() const noexcept;
    size_type <a href="#max_size">max_size</a>() const noexcept;
    bool <a href="#empty">empty</a>() co