Method use_count

src/core/include/megbrain/tensor.h:252–257

shortcut for raw_storage().use_count(), but won't trigger lazy alloc

    //! shortcut for raw_storage().use_count(), but won't trigger lazy alloc
    size_t use_count() const {
        if (m_size > m_capacity) {
            return 1;
        }
        return raw_storage().use_count();
    }

    //! whether current capacity is 0 (so we are waiting for lazy init)
    bool has_no_real_storage() const { return !m_capacity; }