diff --git a/src/test-gradient-method.cc b/src/test-gradient-method.cc index b9383b07eaa2dd688803aca8f86ab26247c1ad3d..bf4f9f560b9f5001c4180e1ef1fd42fa48a192b0 100644 --- a/src/test-gradient-method.cc +++ b/src/test-gradient-method.cc @@ -11,7 +11,7 @@ #include <cassert> template <int dim, class Function> -void functionTester( +double functionTester( Dune::SampleFunctional<dim, Function> J, typename Dune::SampleFunctional<dim, Function>::SmallVector &start, size_t runs) { @@ -23,7 +23,9 @@ void functionTester( if (i != runs) std::cout << "New value: J(...) = " << J(start) << std::endl; } - std::cout << "Final value J(...) = " << J(start) << std::endl; + double const final = J(start); + std::cout << "Final value J(...) = " << final << std::endl; + return final; } void testSampleFunction() {