This is an unofficial snapshot of the ISO/IEC JTC1 SC22 WG21 Core Issues List revision 117b. See http://www.open-std.org/jtc1/sc22/wg21/ for the official list.
2025-08-11
2890. Defining members of local classesSection: 11.6 [class.local] Status: DRWP Submitter: Brian Bi Date: 2024-03-08[Accepted as a DR at the November, 2024 meeting.]
Subclause 11.6 [class.local] paragraph 3 establishes restrictions on the definition of classes nested within local classes, but it is unclear which restrictions exist for other members of local classes.
Possible resolution [SUPERSEDED]:
Change in 11.6 [class.local] paragraph 3 as follows:
If class X is a local class, a nested class Y may be declared in class X and later defined in the definition of class X or be later defined in the same scope as the definition of class X. A class nested within a local class is a local class. A member of a local class X shall be declared only in the definition of X or the nearest enclosing block scope of X.
CWG 2024-06-14
The implementation status quo is that no members of local classes other than nested classes can be defined at block scope.
Proposed resolution (approved by CWG 2024-11-08):
Change in 11.6 [class.local] paragraph 3 as follows:
If class X is a local class, a nested class Y may be declared in class X and later defined in the definition of class X or be later defined in the same scope as the definition of class X. A class nested within a local class is a local class. A member of a local class X shall be declared only in the definition of X or, if the member is a nested class, in the nearest enclosing block scope of X.
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