void testAt(IntVector& test) { cout << "First position" << endl; cout << test.at(0) << endl << endl; cout << "Last position" << endl; cout << test.at(test.size() - 1) << endl << endl; cout << "Front position" << endl; cout << test.front() << endl << endl; cout << "Back position" << endl; cout << test.back() << endl << endl; cout << "First pos changed to last pos" << endl; test.at(0) = test.back(); testValues(test); }