This is an unofficial snapshot of the ISO/IEC JTC1 SC22 WG21 Core Issues List revision 115e. See http://www.open-std.org/jtc1/sc22/wg21/ for the official list.
2024-11-11
Although the current wording permits an ellipsis to immediately follow a function parameter pack, it is not clear that the <cstdarg> facilities permit access to the ellipsis arguments.
Rationale (June, 2014):
CWG felt that this is a question of language design and thus should be considered by EWG before any action.
EWG 2022-11-11
C23 removes the requirement that the last parameter be named for va_start. This is tracked in github issue cplusplus/papers#1374.
Additional notes (October, 2023)
Paper P2537 (Relax va_start Requirements to Match C) proposes to relax va_start to match C23, tracked via cplusplus/papers#1200.