Given a function like:
Foo MakeFoo(const std::string& name);
we might expect the following to be move constructed, assuming a move constructor is defined for Foo, because the RHS is a temporary:
auto foo = MakeFoo("foo 1");
Does the same hold true for fields of temporaries? For example, in:
auto bar = MakeFoo("foo 2").bar;
assuming decltype(Foo::bar) has both copy and move construction defined, is it guaranteed to use one or the other, and does it depend in any way on compiler optimization level?
