[PATCH] D17951: Implement is_always_lock_free

[Eric Fiselier via cfe-commits]

EricWF added a comment.

Re-building clang now so I can test the most recent changes.


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Comment at: include/atomic:850
@@ +849,3 @@
+#if defined(__cpp_lib_atomic_is_always_lock_free)
+  static _LIBCPP_CONSTEXPR bool is_always_lock_free = __atomic_always_lock_free(sizeof(__a_), 0);
+#endif
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I think this needs a definition.



http://reviews.llvm.org/D17951