| // Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| /** |
| * @assertion int modInverse(int modulus) |
| * Returns the modular multiplicative inverse of this integer modulo modulus. |
| * |
| * The modulus must be positive. |
| * |
| * It is an error if no modular inverse exists. |
| * @description Checks that the modulus must be positive |
| * @author sgrekhov@unipro.ru |
| */ |
| import "../../../Utils/expect.dart"; |
| |
| main() { |
| Expect.throws(() {3.modInverse(-11);}, (e) => e is RangeError); |
| Expect.throws(() {3.modInverse(0);}, (e) => e is RangeError); |
| } |
