{
auto x = SharedPtr!(shared long).make(123);
assert(x.useCount == 1);
shared s1 = share(x);
assert(x.useCount == 2);
import core.lifetime : move;
shared s2 = share(x.move);
assert(x == null);
assert(s2.useCount == 2);
assert(s2.load.get == 123);
}
{
auto x = SharedPtr!(long).make(123);
assert(x.useCount == 1);
///error `shared SharedPtr` need shared `ControlType` and shared `ElementType`.
//shared s1 = share(x);
}
Return shared SharedPtr pointing to same managed object like parameter ptr.
Type of parameter ptr must be SharedPtr with shared(ControlType) and shared/immutable ElementType .