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

2023-02-07


85. Redeclaration of member class

Section: 6.5.6  [basic.lookup.elab]     Status: TC1     Submitter: Steve Adamczyk     Date: 25 Jan 1999

In 6.5.6 [basic.lookup.elab] paragraph 3, there is the example

    struct Base {
        // ...
        struct Data { /* ... */ };  // Defines nested Data
        struct Data;                // OK: Redeclares nested Data
    };
The final redeclaration is invalid according to 11.4 [class.mem] paragraph 1 last sentence.

Proposed resolution (10/00): Remove the line

        struct Data;                // OK: Redeclares nested Data

See also Core issue 36 and Core issue 56.