blob: 2b8115884dfea615c2752ee351ef830e7dac2065 [file] [log] [blame]
// Copyright (c) 2012, 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.
// Dart test program for testing params.
//
// Contains test that is failing on dart2js. Merge this test with
// 'number_identity_test.dart' once fixed.
// VMOptions=--optimization-counter-threshold=10
// @dart = 2.9
import "package:expect/expect.dart";
import 'dart:typed_data';
double uint64toDouble(int i) {
var buffer = new Uint8List(8).buffer;
var bdata = new ByteData.view(buffer);
bdata.setUint64(0, i);
return bdata.getFloat64(0);
}
testNumberIdentity() {
var a = double.nan;
var b = a + 0.0;
Expect.isTrue(identical(a, b));
a = uint64toDouble((1 << 64) - 1);
b = uint64toDouble((1 << 64) - 2);
Expect.isFalse(identical(a, b));
a = 0.0 / 0.0;
b = 1.0 / 0.0;
Expect.isFalse(identical(a, b));
}
main() {
for (int i = 0; i < 20; i++) {
testNumberIdentity();
}
}