rip-nsk commented on a change in pull request #11887:
URL: https://github.com/apache/arrow/pull/11887#discussion_r765380261



##########
File path: cpp/src/arrow/util/macros.h
##########
@@ -97,6 +97,17 @@
 
 #endif  // ifndef NULLPTR
 
+// ----------------------------------------------------------------------
+// microsoft source-code annotation language
+
+#ifndef _In_z_
+#define _In_z_
+#endif
+
+#ifndef _Out_writes_opt_
+#define _Out_writes_opt_(size)

Review comment:
       these annotations are specific for msvc environment (required by 
prefast) and removed everywhere (where sal.h is not included) by these macros.




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