1// Copyright 2008 the V8 project authors. All rights reserved.
2// Redistribution and use in source and binary forms, with or without
3// modification, are permitted provided that the following conditions are
4// met:
5//
6//     * Redistributions of source code must retain the above copyright
7//       notice, this list of conditions and the following disclaimer.
8//     * Redistributions in binary form must reproduce the above
9//       copyright notice, this list of conditions and the following
10//       disclaimer in the documentation and/or other materials provided
11//       with the distribution.
12//     * Neither the name of Google Inc. nor the names of its
13//       contributors may be used to endorse or promote products derived
14//       from this software without specific prior written permission.
15//
16// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
28function ToUInt32(x) {
29  return x >>> 0;
30}
31
32assertEquals(0, ToUInt32(0),         "0");
33assertEquals(0, ToUInt32(-0),        "-0");
34assertEquals(0, ToUInt32(Infinity),  "Infinity");
35assertEquals(0, ToUInt32(-Infinity), "-Infinity");
36assertEquals(0, ToUInt32(NaN),       "NaN");
37
38assertEquals(0, ToUInt32(Number.MIN_VALUE),  "MIN");
39assertEquals(0, ToUInt32(-Number.MIN_VALUE), "-MIN");
40assertEquals(0, ToUInt32(0.1),               "0.1");
41assertEquals(0, ToUInt32(-0.1),              "-0.1");
42assertEquals(1, ToUInt32(1),                 "1");
43assertEquals(1, ToUInt32(1.1),               "1.1");
44
45assertEquals(4294967295, ToUInt32(-1),   "-1");
46assertEquals(4294967295, ToUInt32(-1.1), "-1.1");
47
48assertEquals(2147483647, ToUInt32(2147483647), "2147483647");
49assertEquals(2147483648, ToUInt32(2147483648), "2147483648");
50assertEquals(2147483649, ToUInt32(2147483649), "2147483649");
51
52assertEquals(4294967295, ToUInt32(4294967295), "4294967295");
53assertEquals(0,          ToUInt32(4294967296), "4294967296");
54assertEquals(1,          ToUInt32(4294967297), "4294967297");
55
56assertEquals(2147483649, ToUInt32(-2147483647), "-2147483647");
57assertEquals(2147483648, ToUInt32(-2147483648), "-2147483648");
58assertEquals(2147483647, ToUInt32(-2147483649), "-2147483649");
59
60assertEquals(1,          ToUInt32(-4294967295), "-4294967295");
61assertEquals(0,          ToUInt32(-4294967296), "-4294967296");
62assertEquals(4294967295, ToUInt32(-4294967297), "-4294967297");
63
64assertEquals(2147483647, ToUInt32('2147483647'), "'2147483647'");
65assertEquals(2147483648, ToUInt32('2147483648'), "'2147483648'");
66assertEquals(2147483649, ToUInt32('2147483649'), "'2147483649'");
67
68assertEquals(4294967295, ToUInt32('4294967295'), "'4294967295'");
69assertEquals(0,          ToUInt32('4294967296'), "'4294967296'");
70assertEquals(1,          ToUInt32('4294967297'), "'4294967297'");
71