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1// Copyright 2014 the V8 project authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5function Module(stdlib) {
6  "use asm";
7
8  var abs = stdlib.Math.abs;
9
10  // f: double -> double
11  function f(a) {
12    a = +a;
13    return +abs(a);
14  }
15
16  // g: unsigned -> double
17  function g(a) {
18    a = a>>>0;
19    return +abs(a);
20  }
21
22  // h: signed -> double
23  function h(a) {
24    a = a|0;
25    return +abs(a);
26  }
27
28  return { f: f, g: g, h: h };
29}
30
31var m = Module({ Math: Math });
32var f = m.f;
33var g = m.g;
34var h = m.h;
35
36assertTrue(isNaN(f(NaN)));
37assertTrue(isNaN(f(undefined)));
38assertTrue(isNaN(f(function() {})));
39
40assertEquals("Infinity", String(1/f(0)));
41assertEquals("Infinity", String(1/f(-0)));
42assertEquals("Infinity", String(f(Infinity)));
43assertEquals("Infinity", String(f(-Infinity)));
44
45assertEquals(0,   f(0));
46assertEquals(0.1, f(0.1));
47assertEquals(0.5, f(0.5));
48assertEquals(0.1, f(-0.1));
49assertEquals(0.5, f(-0.5));
50assertEquals(1,   f(1));
51assertEquals(1.1, f(1.1));
52assertEquals(1.5, f(1.5));
53assertEquals(1,   f(-1));
54assertEquals(1.1, f(-1.1));
55assertEquals(1.5, f(-1.5));
56
57assertEquals(0,          g(0));
58assertEquals(0,          g(0.1));
59assertEquals(0,          g(0.5));
60assertEquals(0,          g(-0.1));
61assertEquals(0,          g(-0.5));
62assertEquals(1,          g(1));
63assertEquals(1,          g(1.1));
64assertEquals(1,          g(1.5));
65assertEquals(4294967295, g(-1));
66assertEquals(4294967295, g(-1.1));
67assertEquals(4294967295, g(-1.5));
68
69assertEquals(0, h(0));
70assertEquals(0, h(0.1));
71assertEquals(0, h(0.5));
72assertEquals(0, h(-0.1));
73assertEquals(0, h(-0.5));
74assertEquals(1, h(1));
75assertEquals(1, h(1.1));
76assertEquals(1, h(1.5));
77assertEquals(1, h(-1));
78assertEquals(1, h(-1.1));
79assertEquals(1, h(-1.5));
80
81assertEquals(Number.MIN_VALUE, f(Number.MIN_VALUE));
82assertEquals(Number.MIN_VALUE, f(-Number.MIN_VALUE));
83assertEquals(Number.MAX_VALUE, f(Number.MAX_VALUE));
84assertEquals(Number.MAX_VALUE, f(-Number.MAX_VALUE));
85