Are move constructors produced automatically?

Question

I have a big class holding a lot of STL containers.
Will the compiler automatically make a move constructor that will move those containers to the target or I have to ma

Answer 1

Default move constructors are generally tied to default copy constructors. You get one when you get the other. However, if you write a copy constructor/assignment operator, then no default copy and move constructors/assignment operators are written. If you write one of either set, you must write them all.