| 16 | SArray<K>& key(int channel) { return key_[channel]; } |
| 17 | SArray<V>& value(int channel) { return val_[channel]; } |
| 18 | void clear(int channel) { key_.erase(channel); val_.erase(channel); } |
| 19 | |
| 20 | // find the local positions of a global key range |
| 21 | SizeR find(int channel, const Range<K>& key_range) { |