[Webkit-unassigned] [Bug 81509] [Qt] fast/table/max-width-integer-overflow.html differs on 32- and 64-bit systems

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=81509





--- Comment #7 from Luke Macpherson <macpherson at chromium.org>  2012-03-20 00:02:42 PST ---
Just to make sure we understand what's going on, we used to clamp Lengths to 2^28 bits. Lengths themselves have supported the full range of int (and also float) lengths for a while, but we were artificially clamping some values to 2^28 anyway. https://bugs.webkit.org/show_bug.cgi?id=67976 removed that clamping, so the full range of values supported by Length can be used.

If you're seeing different values on 32 and 64 bit systems, that must mean that sizeof(int) is different on those systems - which is surprising to me, since a lot of webkit code seems to assume that sizeof(int)==4 (or at least ==sizeof(float)) for data structure packing.

In any case, I don't think it's a bug, at least insofar as the range of lengths is not defined by the CSS spec.

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