This is an unofficial snapshot of the ISO/IEC JTC1 SC22 WG21 Core Issues List revision 118d. See http://www.open-std.org/jtc1/sc22/wg21/ for the official list.

2025-10-25

3090. Internal linkage from header units

The note in 10.2 [module.interface] paragraph 7 incorrectly omits internal linkage names provided by header units; see 10.3 [module.import] paragraph 6.

Suggested resolution

Change in 10.2 [module.interface] paragraph 7 as follows:

[Note 3: Names introduced by exported declarations never have module linkage. They have either external linkage or, no linkage , or, in the case of header units, internal linkage; see 6.7 [basic.link]. Namespace-scope declarations exported by a module can be found by name lookup in any translation unit importing that module (6.5 [basic.lookup]). Class and enumeration member names can be found by name lookup in any context in which a definition of the type is reachable. —end note]