Give temporary a name

src/one-body-sample.cc

@@ -504,10 +504,11 @@ int main(int argc, char *argv[]) {
 
       if (parset.get<bool>("writeVTK")) {
         SingletonVectorType vonMisesStress;
-        VonMisesStressAssembler<GridType> localStressAssembler(
-            E, nu,
+        auto const gridDisplacement =
             Dune::make_shared<BasisGridFunction<P1Basis, VectorType> const>(
-                p1Basis, u));
+                p1Basis, u);
+        VonMisesStressAssembler<GridType> localStressAssembler(
+            E, nu, gridDisplacement);
         FunctionalAssembler<P0Basis>(p0Basis)
             .assemble(localStressAssembler, vonMisesStress, true);