B"H I'm doing some research. I grep'ed through the 1.43 version of the libs/serialization directories for uses of std::move and didn't find any. I also looked at the "To Do" section of the documentation and didn't find any mention of move semantics. Does Boost Serialization take advantage of std::move to improve the performance of it's load operations? Something like the following: template <typename B> void Receive(B* buf, vector& abt1) { uint32_t headCount[2]; buf->Give(headCount[0]); abt1.reserve(abt1.size() + headCount[0]); while (headCount[0] > 0) { --headCount[0]; deque rep4; buf->Give(headCount[1]); while (headCount[1] > 0) { --headCount[1]; string rep5; stringReceive(buf. rep5); rep4.push_back(std::move(rep5)); } abt1.push_back(std::move(rep4)); } } Thanks in advance. -- Brian Wood