Construct-in-place an unmoveable object in a map

Question

I\'m trying to construct an object in a map that contains an atomic, so it can neither be copied nor moved AFAICT.

My reading of C++ reference is that map empl

Answer 1

May be the following solution will be better, since atomic is not copyable:

class Z {
  std::atomic i;
};

std::unordered_map> map;

void test(void) {
  map.emplace(0, std::make_shared()); // OK
}