How to move an object into uninitialized memory?
c++, c++11, move-semantics
Solution
You could use placement new to move-construct it in the memory:
void * memory = get_some_memory();
Thing * new_thing = new (memory) Thing(std::move(old_thing));
If it has a non-trivial destructor, then you'll need to explicitly destroy it when you're done:
new_thing->~Thing();
Problem
Given an allocated but uninitialized memory location, how do I move some object into that location (destroying the original), without constructing potentially expensive intermediate objects?