From 3e539985cc7a28516054cc080ffd9681aa745afa Mon Sep 17 00:00:00 2001 From: Jonathan Wakely Date: Wed, 9 Feb 2022 13:38:33 +0000 Subject: [PATCH] libstdc++: Add atomic_fetch_xor to This function (and the explicit memory over version) are present in both C++ and C , so should be in C++ too. There is a library issue incoming for this, but the resolution is obvious. libstdc++-v3/ChangeLog: * include/c_compatibility/stdatomic.h (atomic_fetch_xor): Add using-declaration. (atomic_fetch_xor_explicit): Likewise. * testsuite/29_atomics/headers/stdatomic.h/c_compat.cc: Check arithmetic and logical operations for atomic_int. --- libstdc++-v3/include/c_compatibility/stdatomic.h | 2 ++ .../testsuite/29_atomics/headers/stdatomic.h/c_compat.cc | 11 +++++++++++ 2 files changed, 13 insertions(+) diff --git a/libstdc++-v3/include/c_compatibility/stdatomic.h b/libstdc++-v3/include/c_compatibility/stdatomic.h index 95c7261..c97cbac 100644 --- a/libstdc++-v3/include/c_compatibility/stdatomic.h +++ b/libstdc++-v3/include/c_compatibility/stdatomic.h @@ -111,6 +111,8 @@ using std::atomic_fetch_sub; using std::atomic_fetch_sub_explicit; using std::atomic_fetch_or; using std::atomic_fetch_or_explicit; +using std::atomic_fetch_xor; +using std::atomic_fetch_xor_explicit; using std::atomic_fetch_and; using std::atomic_fetch_and_explicit; using std::atomic_flag_test_and_set; diff --git a/libstdc++-v3/testsuite/29_atomics/headers/stdatomic.h/c_compat.cc b/libstdc++-v3/testsuite/29_atomics/headers/stdatomic.h/c_compat.cc index 80d2e15..6dd4f5b 100644 --- a/libstdc++-v3/testsuite/29_atomics/headers/stdatomic.h/c_compat.cc +++ b/libstdc++-v3/testsuite/29_atomics/headers/stdatomic.h/c_compat.cc @@ -116,6 +116,17 @@ static_assert( requires (::atomic_int* i, int* e) { ::atomic_compare_exchange_weak_explicit(i, e, 3, memory_order_acq_rel, memory_order_relaxed); + + ::atomic_fetch_add(i, 1); + ::atomic_fetch_add_explicit(i, 1, memory_order_relaxed); + ::atomic_fetch_sub(i, 1); + ::atomic_fetch_sub_explicit(i, 1, memory_order_relaxed); + ::atomic_fetch_and(i, 1); + ::atomic_fetch_and_explicit(i, 1, memory_order_relaxed); + ::atomic_fetch_or(i, 1); + ::atomic_fetch_or_explicit(i, 1, memory_order_relaxed); + ::atomic_fetch_xor(i, 1); + ::atomic_fetch_xor_explicit(i, 1, memory_order_relaxed); } ); static_assert( requires (::atomic_flag* f) { -- 2.7.4