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
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.
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13 // contributors may be used to endorse or promote products derived
14 // from this software without specific prior written permission.
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,
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26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 // Converts a number to string respecting -0.
31 function stringify(n) {
32 if ((1 / n) === -Infinity) return "-0";
36 function f(expected, y) {
37 function testEval(string, x, y) {
38 var mulFunction = Function("x, y", "return " + string);
39 return mulFunction(x, y);
41 function mulTest(expected, x, y) {
42 assertEquals(expected, x * y);
43 assertEquals(expected, testEval(stringify(x) + " * y", x, y));
44 assertEquals(expected, testEval("x * " + stringify(y), x, y));
45 assertEquals(expected, testEval(stringify(x) + " * " + stringify(y), x, y));
47 mulTest(expected, x, y);
48 mulTest(-expected, -x, y);
49 mulTest(-expected, x, -y);
50 mulTest(expected, -x, -y);
51 if (x === y) return; // Symmetric cases not necessary.
52 mulTest(expected, y, x);
53 mulTest(-expected, -y, x);
54 mulTest(-expected, y, -x);
55 mulTest(expected, -y, -x);