check that disk has been given as argument before accessing its pimpl

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

diff --git a/src/kernel/activity/BarrierImpl.hpp b/src/kernel/activity/BarrierImpl.hpp
index e54563ace740eaf0dab97b0e940e796c9e90528f..7d72f6b6f70d52a4290d3befb8f6cab5e6c8990c 100644 (file)
--- a/src/kernel/activity/BarrierImpl.hpp
+++ b/src/kernel/activity/BarrierImpl.hpp
@@ -11,9 +11,7 @@
 #include "src/kernel/actor/ActorImpl.hpp"
 #include "src/kernel/actor/SynchroObserver.hpp"
 
-namespace simgrid {
-namespace kernel {
-namespace activity {
+namespace simgrid::kernel::activity {
 /** Barrier Acquisition: the act / process of acquiring the barrier.
  *
  * This is the asynchronous activity associated to Barriers. See the doc of MutexImpl for more details on the rationnal.
@@ -75,12 +73,10 @@ public:
 
   s4u::Barrier& get_iface() { return piface_; }
 
-  std::string to_string()
+  std::string to_string() const
   {
     return xbt::string_printf("Barrier %u: %zu of %u", id_, ongoing_acquisitions_.size(), expected_actors_);
   }
 };
-} // namespace activity
-} // namespace kernel
-} // namespace simgrid
+} // namespace simgrid::kernel::activity
 #endif