Mark constructor as 'explicit'.

diff --git a/include/deal.II/base/scope_exit.h b/include/deal.II/base/scope_exit.h
index b7fb2d014b27e1f549b43bcade82a129768f6365..776702a43bb89c2330821c21860c9f3e03ea4ba8 100644 (file)
--- a/include/deal.II/base/scope_exit.h
+++ b/include/deal.II/base/scope_exit.h
@@ -138,7 +138,7 @@ public:
    * Constructor. Takes a function object that is to be executed at the
    * place where the current object goes out of scope as argument.
    */
-  ScopeExit(const std::function<void()> &exit_function);
+  explicit ScopeExit(const std::function<void()> &exit_function);
 
   /**
    * Copy constructor. These kinds of objects cannot be copied, so the