fix for old clang (#14732)

fceller · web-flow · commit d3fde7986df5 · 2021-09-05T22:33:37.000+03:00
diff --git a/arangod/Graph/ConstantWeightShortestPathFinder.h b/arangod/Graph/ConstantWeightShortestPathFinder.h
@@ -49,7 +49,7 @@ class ConstantWeightShortestPathFinder : public ShortestPathFinder {
     PathSnippet() noexcept;
     PathSnippet(arangodb::velocypack::StringRef pred, graph::EdgeDocumentToken&& path) noexcept;
     PathSnippet(PathSnippet&& other) noexcept = default;
-    PathSnippet& operator=(PathSnippet&& other) noexcept = default;
+    PathSnippet& operator=(PathSnippet&& other) ARANGODB_NOEXCEPT_ASSIGN_OP = default;
     
     bool empty() const noexcept {
       return _pred.empty();
diff --git a/lib/Basics/operating-system.h b/lib/Basics/operating-system.h
@@ -225,6 +225,14 @@
 #define TRI_uid_t uid_t
 #define TRI_gid_t gid_t
 
+// noexcept
+
+#if defined(__clang__) && __clang_major__ == 11 && __clang_minor__ == 0
+#define ARANGODB_NOEXCEPT_ASSIGN_OP /* noexcept */
+#else
+#define ARANGODB_NOEXCEPT_ASSIGN_OP noexcept
+#endif
+
 #endif
 
 // -----------------------------------------------------------------------------
@@ -372,6 +380,10 @@
 #define TRI_uid_t uid_t
 #define TRI_gid_t gid_t
 
+// noexcept
+
+#define ARANGODB_NOEXCEPT_ASSIGN_OP noexcept
+
 #endif
 
 // -----------------------------------------------------------------------------
@@ -533,6 +545,10 @@
 #define TRI_uid_t uid_t
 #define TRI_gid_t gid_t
 
+// noexcept
+
+#define ARANGODB_NOEXCEPT_ASSIGN_OP noexcept
+
 #endif
 
 // -----------------------------------------------------------------------------
@@ -768,6 +784,10 @@ void TRI_GET_ARGV_WIN(int& argc, char** argv);
 #define TRI_uid_t void*
 #define TRI_gid_t void*
 
+// noexcept
+
+#define ARANGODB_NOEXCEPT_ASSIGN_OP noexcept
+
 #endif
 
 #endif
