step-81: print something more to the screen

diff --git a/examples/step-81/step-81.cc b/examples/step-81/step-81.cc
index 3313cf66e44a31927c5337ebd40ae07ad1d028ad..eb1b788c279bd415e1d8d5161dc79a540d414cc7 100644 (file)
--- a/examples/step-81/step-81.cc
+++ b/examples/step-81/step-81.cc
@@ -850,8 +850,10 @@ namespace Step81
     data_out.add_data_vector(solution,
                              {"real_Ex", "real_Ey", "imag_Ex", "imag_Ey"});
     data_out.build_patches();
-    std::ofstream output("solution.vtk");
+    const std::string filename = "solution.vtk";
+    std::ofstream     output(filename);
     data_out.write_vtk(output);
+    std::cout << "Output written to " << filename << std::endl;
   }
 
 

diff --git a/tests/examples/step-81.with_umfpack=true.output b/tests/examples/step-81.with_umfpack=true.output
index a05168d55ebdd89b922ebe80d2314803557e88d7..bc54b634a3412d845b93c22e2a3bfe7277345ebc 100644 (file)
--- a/tests/examples/step-81.with_umfpack=true.output
+++ b/tests/examples/step-81.with_umfpack=true.output
@@ -1,2 +1,3 @@
 Number of active cells: 65536
 Number of degrees of freedom: 263168
+Output written to solution.vtk