This is an unofficial snapshot of the ISO/IEC JTC1 SC22 WG21 Core Issues List revision 110b. See http://www.open-std.org/jtc1/sc22/wg21/ for the official list.

2023-01-15


306. Ambiguity by class name injection

Section: 6.5.2  [class.member.lookup]     Status: CD1     Submitter: Clark Nelson     Date: 19 Jul 2001

[Voted into WP at April 2005 meeting.]

Is the following well-formed?

    struct A {
        struct B { };
    };
    struct C : public A, public A::B {
        B *p;
    };
The lookup of B finds both the struct B in A and the injected B from the A::B base class. Are they the same thing? Does the standard say so?

What if a struct is found along one path and a typedef to that struct is found along another path? That should probably be valid, but does the standard say so?

This is resolved by issue 39

February 2004: Moved back to "Review" status because issue 39 was moved back to "Review".