[libcxx-commits] [PATCH] D150421: [libc++][NFC] Use _LIBCPP_STD_VER instead of __cpp_lib_atomic_is_always_lock_free
Nikolas Klauser via Phabricator via libcxx-commits
libcxx-commits at lists.llvm.org
Sat May 13 16:27:19 PDT 2023
This revision was automatically updated to reflect the committed changes.
philnik marked an inline comment as done.
Closed by commit rGc04bcadf30ee: [libc++][NFC] Use _LIBCPP_STD_VER instead of… (authored by philnik).
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D150421/new/
https://reviews.llvm.org/D150421
Files:
libcxx/include/__atomic/aliases.h
libcxx/include/__atomic/atomic_base.h
Index: libcxx/include/__atomic/atomic_base.h
===================================================================
--- libcxx/include/__atomic/atomic_base.h
+++ libcxx/include/__atomic/atomic_base.h
@@ -33,7 +33,7 @@
{
mutable __cxx_atomic_impl<_Tp> __a_;
-#if defined(__cpp_lib_atomic_is_always_lock_free)
+#if _LIBCPP_STD_VER >= 17
static _LIBCPP_CONSTEXPR bool is_always_lock_free = __libcpp_is_always_lock_free<__cxx_atomic_impl<_Tp> >::__value;
#endif
@@ -139,7 +139,7 @@
__atomic_base(const __atomic_base&) = delete;
};
-#if defined(__cpp_lib_atomic_is_always_lock_free)
+#if _LIBCPP_STD_VER >= 17
template <class _Tp, bool __b>
_LIBCPP_CONSTEXPR bool __atomic_base<_Tp, __b>::is_always_lock_free;
#endif
Index: libcxx/include/__atomic/aliases.h
===================================================================
--- libcxx/include/__atomic/aliases.h
+++ libcxx/include/__atomic/aliases.h
@@ -82,7 +82,7 @@
// atomic_*_lock_free : prefer the contention type most highly, then the largest lock-free type
-#ifdef __cpp_lib_atomic_is_always_lock_free
+#if _LIBCPP_STD_VER >= 17
# define _LIBCPP_CONTENTION_LOCK_FREE ::std::__libcpp_is_always_lock_free<__cxx_contention_t>::__value
#else
# define _LIBCPP_CONTENTION_LOCK_FREE false
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