[Webkit-unassigned] [Bug 92163] flexitems can overflow the flexbox due to rounding

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=92163





--- Comment #2 from Emil A Eklund <eae at chromium.org>  2012-07-24 15:14:37 PST ---
The problem might be the following code in RenderFlexibleBox::resolveFlexibleLengths:

            if (availableFreeSpace > 0 && totalFlexGrow > 0 && flexSign == PositiveFlexibility && isfinite(totalFlexGrow))
                childSize += static_cast<int>(lroundf(availableFreeSpace * child->style()->flexGrow() / totalFlexGrow));
            else if (availableFreeSpace < 0 && totalWeightedFlexShrink > 0 && flexSign == NegativeFlexibility && isfinite(totalWeightedFlexShrink))
                childSize += static_cast<int>(lroundf(availableFreeSpace * child->style()->flexShrink() * preferredChildSize / totalWeightedFlexShrink));

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