[Webkit-unassigned] [Bug 204457] New: Math.max() can yield the wrong result for max(-0, 0).

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=204457

            Bug ID: 204457
           Summary: Math.max() can yield the wrong result for max(-0, 0).
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: mark.lam at apple.com

Spec says 0 is greater than -0.  See https://www.ecma-international.org/ecma-262/6.0/#sec-math.max.

POC:
function foo(x, y) {
    return Math.max(x, y);
}
for (var i = 0; i < 30000; ++i) {
    x = 100/foo(0.0, -0.0);
    if (x < 0)
        throw "FAILED";
}

Expected: should run to completion silently.
Actual: throws "FAILED".

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.webkit.org/pipermail/webkit-unassigned/attachments/20191121/e5fbf42f/attachment.htm>