Function get_ptr

boost/optional/optional.hpp:337–337

Returns a pointer to the value if this is initialized, otherwise, returns NULL. No-throw

    // returns NULL.
    // No-throw
    pointer_const_type get_ptr() const { return m_initialized ? get_ptr_impl() : 0 ; }
    pointer_type       get_ptr()       { return m_initialized ? get_ptr_impl() : 0 ; }

    bool is_initialized() const { return m_initialized ; }