[Webkit-unassigned] [Bug 40355] Exception loading Google Wave in Safari 5

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=40355





--- Comment #6 from Steve Dunham <dunhamsteve at gmail.com>  2010-06-11 08:56:41 PST ---
Further reduced test case:

function test() {
    var off = -0;
    var tmp = 5 + off;
    var tmp2 = (tmp >> 1);
    tmp = tmp >> 1;
    if (tmp != tmp2)
        document.getElementById("result").innerHTML = "fail "+tmp+" != "+tmp2;
    else
        document.getElementById("result").innerHTML = "pass";
}

Gives:
  fail 5.000000000000002 != 2

It looks like adding "-0" to an integer results in a value that will right shift correctly in some contexts but not in others.  (Note that tmp2 holds the correct value, but tmp does not.)

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