lock()

template<typename T>

shared_ptr< T > fl::weak_ptr< T >::lock ( ) const

inlinenoexcept

Definition at line 139 of file weak_ptr.h.

                                        {
        if (expired()) {
            return shared_ptr<T>();
        }
        
        // Try to acquire the shared pointer atomically
        if (control_block_ && control_block_->shared_count > 0) {
            ++control_block_->shared_count;
            return shared_ptr<T>(ptr_, control_block_, detail::make_shared_tag{});
        }
        return shared_ptr<T>();
    }

References control_block_, expired(), ptr_, and shared_ptr.

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