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Section: 31.12 [stdatomic.h.syn] Status: Tentatively Ready Submitter: Hubert Tong Opened: 2022-02-09 Last modified: 2022-02-10
Priority: Not Prioritized
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Discussion:
C17 subclause 7.17.7.5 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 31.2 [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.
Proposed resolution:
This wording is relative to N4901.
Modify 31.12 [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 31 [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_xor; // see below using std::atomic_fetch_xor_explicit; // see below using std::atomic_fetch_and; // see below using std::atomic_fetch_and_explicit; // see below […]