test_runner ("An integer: %dEND", 98765);
test_runner ("A floating point number: %gEND", 3.142);
test_runner ("A floating point number with default precision: %fEND", 1.234);
test_runner ("An integer: %dEND", 98765);
test_runner ("A floating point number: %gEND", 3.142);
test_runner ("A floating point number with default precision: %fEND", 1.234);