Jody Goldberg <jody+@cmu.edu> wrote:
>class A
>{
>    A & operator=(A const &);  // it is private
                 ^
                 correction
>};
>
>class B : public A
>{
>};
>// B does not define a copy assignment operator and it is not called in the
>// translation unit
>// WP 12.8 para 12 states that implicitly defining a copy assigment operator
>// makes the program ill formed only if it is called.  Can a conformant
>// compiler compile the above code without error ?

The question is "MUST ..." and the answer is if you add:

main() {}

to the above and say it is a complete program then
a conforming translator is required to compile and
execute the code correctly.

If you wrote

main() { B b1, b2; b1=b2; }

then a diagnostic would be required --
"Can't generate B copy assignment because A
assignment is inaccessible" for example.



--
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