mirror of
https://github.com/dart-lang/sdk
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e7d4c48a80
Change-Id: I9a51ae6a1f8f4d018da289b6f29ab18053304c19 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/132341 Commit-Queue: Erik Ernst <eernst@google.com> Reviewed-by: Lasse R.H. Nielsen <lrn@google.com>
85 lines
2.1 KiB
Dart
85 lines
2.1 KiB
Dart
// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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import 'dart:typed_data';
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import "package:expect/expect.dart";
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main() {
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swapTest();
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swapTestVar(Endian.little, Endian.big);
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swapTestVar(Endian.big, Endian.little);
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}
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swapTest() {
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ByteData data = new ByteData(16);
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Expect.equals(16, data.lengthInBytes);
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for (int i = 0; i < 4; i++) {
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data.setInt32(i * 4, i);
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}
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for (int i = 0; i < data.lengthInBytes; i += 4) {
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var e = data.getInt32(i, Endian.big);
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data.setInt32(i, e, Endian.little);
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}
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Expect.equals(0x02000000, data.getInt32(8));
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for (int i = 0; i < data.lengthInBytes; i += 2) {
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var e = data.getInt16(i, Endian.big);
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data.setInt16(i, e, Endian.little);
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}
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Expect.equals(0x00020000, data.getInt32(8));
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for (int i = 0; i < data.lengthInBytes; i += 4) {
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var e = data.getUint32(i, Endian.little);
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data.setUint32(i, e, Endian.big);
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}
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Expect.equals(0x00000200, data.getInt32(8));
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for (int i = 0; i < data.lengthInBytes; i += 2) {
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var e = data.getUint16(i, Endian.little);
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data.setUint16(i, e, Endian.big);
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}
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Expect.equals(0x00000002, data.getInt32(8));
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}
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swapTestVar(read, write) {
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ByteData data = new ByteData(16);
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Expect.equals(16, data.lengthInBytes);
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for (int i = 0; i < 4; i++) {
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data.setInt32(i * 4, i);
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}
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for (int i = 0; i < data.lengthInBytes; i += 4) {
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var e = data.getInt32(i, read);
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data.setInt32(i, e, write);
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}
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Expect.equals(0x02000000, data.getInt32(8));
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for (int i = 0; i < data.lengthInBytes; i += 2) {
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var e = data.getInt16(i, read);
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data.setInt16(i, e, write);
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}
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Expect.equals(0x00020000, data.getInt32(8));
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for (int i = 0; i < data.lengthInBytes; i += 4) {
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var e = data.getUint32(i, read);
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data.setUint32(i, e, write);
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}
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Expect.equals(0x00000200, data.getInt32(8));
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for (int i = 0; i < data.lengthInBytes; i += 2) {
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var e = data.getUint16(i, read);
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data.setUint16(i, e, write);
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}
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Expect.equals(0x00000002, data.getInt32(8));
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}
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