This page is a snapshot from the LWG issues list, see the Library Active Issues List for more information and the meaning of WP status.
Section: 33.5.12 [stdatomic.h.syn] Status: WP Submitter: Hubert Tong Opened: 2022-02-09 Last modified: 2022-07-25
Priority: Not Prioritized
View all issues with WP status.
C17 subclause 18.104.22.168 provides atomic_fetch_xor and atomic_fetch_xor_explicit. stdatomic.h in the working draft (N4901) does not.
[2022-02-09; Jonathan comments and provides wording]
C++20 33.5.2 [atomics.syn] has both of them, too, so it should definitely be in the common subset.
[2022-03-04; Reflector poll]
Set status to Tentatively Ready after eight votes in favour during reflector poll.
[2022-07-15; LWG telecon: move to Ready]
[2022-07-25 Approved at July 2022 virtual plenary. Status changed: Ready → WP.]
This wording is relative to N4901.
Modify 33.5.12 [stdatomic.h.syn], header <stdatomic.h> synopsis, as indicated:
[Drafting Note: The editor is kindly requested to reorder these "atomic_fetch_KEY" declarations to match the other synopses in Clause 33.5 [atomics]: add, sub, and, or, xor.]
[…] using std::atomic_fetch_or; // see below using std::atomic_fetch_or_explicit; // see below using std::atomic_fetch_and; // see below using std::atomic_fetch_and_explicit; // see below […]