How are C++ array members handled in copy control functions?

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This is what the standard says in 12.8 (Copying class objects). Copy construction:

Each subobject is copied in the manner appropriate to its type:

  • if the subobject is of class type, the copy constructor for the class is used;
  • if the subobject is an array, each element is copied, in the manner appropriate to the element type;
  • if the subobject is of scalar type, the built-in assignment operator is used.

Copy assignment:

Each subobject is assigned in the manner appropriate to its type:

  • if the subobject is of class type, the copy assignment operator for the class is used (as if by explicit qualification; that is, ignoring any possible virtual overriding functions in more derived classes);
  • if the subobject is an array, each element is assigned, in the manner appropriate to the element type;
  • if the subobject is of scalar type, the built-in assignment operator is used.

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