fix a -Wdtor warning

diff --git a/source/sundials/sunlinsol_wrapper.cc b/source/sundials/sunlinsol_wrapper.cc
index d0fed625796c43d1fd9afa7eb696bf893ad96b60..78bc3db2fdaac8e51a7a1f9cd60dfc28537bf213 100644 (file)
--- a/source/sundials/sunlinsol_wrapper.cc
+++ b/source/sundials/sunlinsol_wrapper.cc
@@ -194,19 +194,22 @@ namespace SUNDIALS
 
 
 
-  template <typename VectorType>
-  internal::LinearSolverWrapper<VectorType>::~LinearSolverWrapper()
+  namespace internal
   {
-    SUNLinSolFreeEmpty(sun_linear_solver);
-  }
+    template <typename VectorType>
+    LinearSolverWrapper<VectorType>::~LinearSolverWrapper()
+    {
+      SUNLinSolFreeEmpty(sun_linear_solver);
+    }
 
 
 
-  template <typename VectorType>
-  internal::LinearSolverWrapper<VectorType>::operator SUNLinearSolver()
-  {
-    return sun_linear_solver;
-  }
+    template <typename VectorType>
+    LinearSolverWrapper<VectorType>::operator SUNLinearSolver()
+    {
+      return sun_linear_solver;
+    }
+  } // namespace internal