Fix UB in format_arg_store implementation.

fmtlib · Jan 31, 2024 · 64595a0 · 64595a0
1 parent 71a4a8d
commit 64595a0
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/include/fmt/base.h b/include/fmt/base.h
@@ -1649,6 +1649,11 @@ struct format_arg_store {
         0,
         (init_named_arg(named_args, arg_index, named_arg_index, values), 0)...};
   }
+
+  format_arg_store(const format_arg_store& rhs) = delete;
+  format_arg_store(format_arg_store&& rhs) = delete;
+  format_arg_store& operator=(const format_arg_store& rhs) = delete;
+  format_arg_store& operator=(format_arg_store&& rhs) = delete;
 };
 
 // A specialization of format_arg_store without named arguments.