Re: rvalue references: Implicit move method generation cannot be used?

/docs/Using_CXX_in_Mozilla_code ) there is this note: rvalue references: Implicit move method generation cannot be used First written before Aug 2013, updated by Jcranmer on January 26, 2015 Could we get more details please, e.g.: Why is that (still?) true what to do about it? My guess

rvalue references: Implicit move method generation cannot be used?

In Using C++ in Mozilla code ( https://developer.mozilla.org/en-US/docs/Using_CXX_in_Mozilla_code ) there is this note: rvalue references: Implicit move method generation cannot be used First written before Aug 2013, updated by Jcranmer on January 26, 2015 Could we get more details please, e.g