Annex D (normative) Compatibility features [depr] (original) (raw)
The implicit definition of a copy constructoras defaulted is deprecated if the class has a user-declared copy assignment operator or a user-declared destructor.
The implicit definition of a copy assignment operatoras defaulted is deprecated if the class has a user-declared copy constructor or a user-declared destructor.
It is possible that future versions of C++ will specify that these implicit definitions are deleted ([dcl.fct.def.delete]).