blob: c88561bf8b20f07413f4e623b9f65010fdfe382d [file] [log] [blame]
// Copyright (c) 2011, 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 double operator -(num other)
/// @description Checks that if both operands are positive infinity or both
/// operands are negative infinity the result is NaN.
/// @author pagolubev
import "../../../Utils/expect.dart";
checkNaN(d) {
var msg = 'Expected: NaN, actual: $d';
Expect.isTrue(d.isNaN, msg);
main() {
checkNaN(double.infinity - double.infinity);
checkNaN(double.negativeInfinity - double.negativeInfinity);