| 171 | /// Access bin counter at indices |
| 172 | template <typename... Ts> |
| 173 | const_reference at(const Ts&... ts) const { |
| 174 | // case with one argument is ambiguous, is specialized below |
| 175 | const auto index = |
| 176 | detail::at_impl(detail::no_container_tag(), axes_, static_cast<int>(ts)...); |
| 177 | return storage_[index]; |
| 178 | } |
| 179 | |
| 180 | template <typename T> |
| 181 | void operator()(const T& t) { |