FOLLY_ATTR_CLANG_UNINITIALIZED

Summary: A preprocessor macro `FOLLY_ATTR_CLANG_UNINITIALIZED` expanding to `clang::uninitialized` when available. Reviewed By: dmm-fb Differential Revision: D63917336 fbshipit-source-id: 4fb08d15b29a6ed157d74eedab87b36515cdb67c
facebook · Oct 5, 2024 · 4bcdc74 · 4bcdc74
1 parent bd94b97
commit 4bcdc74
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/folly/CppAttributes.h b/folly/CppAttributes.h
@@ -128,6 +128,12 @@
 #define FOLLY_ATTR_CLANG_NO_DESTROY
 #endif
 
+#if FOLLY_HAS_CPP_ATTRIBUTE(clang::uninitialized)
+#define FOLLY_ATTR_CLANG_UNINITIALIZED clang::uninitialized
+#else
+#define FOLLY_ATTR_CLANG_UNINITIALIZED
+#endif
+
 /**
  * Accesses to objects with types with this attribute are not subjected to
  * type-based alias analysis, but are instead assumed to be able to alias any