Here is how I have experienced this discussion:
DAK: this is micro-optimization that causes memory fragmentation. HW: No, it's not; here is a benchmark that shows decreased memory use as well. DAK: We could use even different data structures in the future. HW: This seems very philosophical to me. Maybe I misunderstood, because the hardcoding of a specific STL container type predates this patch. If you want me to use "auto" instead of "vector<Building>::const_iterator", can you just point to the line in the code and say "could you use auto instead of an iterator here"? thanks, https://codereview.appspot.com/583750043/
