Cosmetics around #include.

[simgrid.git] / src / kernel / activity / MutexImpl.hpp

diff --git a/src/kernel/activity/MutexImpl.hpp b/src/kernel/activity/MutexImpl.hpp
index ba85ad0..fa291d3 100644 (file)
--- a/src/kernel/activity/MutexImpl.hpp
+++ b/src/kernel/activity/MutexImpl.hpp
@@ -1,4 +1,4 @@
-/* Copyright (c) 2012-2020. The SimGrid Team. All rights reserved.          */
+/* Copyright (c) 2012-2021. The SimGrid Team. All rights reserved.          */
 
 /* This program is free software; you can redistribute it and/or modify it
  * under the terms of the license (GNU LGPL) which comes with this package. */
@@ -30,7 +30,7 @@ public:
   void lock(actor::ActorImpl* issuer);
   bool try_lock(actor::ActorImpl* issuer);
   void unlock(actor::ActorImpl* issuer);
-  bool is_locked() { return locked_; }
+  bool is_locked() const { return locked_; }
 
   MutexImpl* ref();
   void unref();