message: [crispy] ring: Adds size() member.
diff: @@ -149,6 +149,8 @@ class ring: public basic_ring<T, Container<T, Allocator>>
  ring(size_t capacity, T value): ring(Container<T, Allocator>(capacity, value)) {}
  explicit ring(size_t capacity): ring(capacity, T {}) {}
  + size_t size() const noexcept { return this->_storage.size(); }
  +
  void reserve(size_t capacity) { this->_storage.reserve(capacity); }
  void resize(size_t newSize)
  {
  