[Webkit-unassigned] [Bug 42653] IntSize / FloatSize: add invalid() and isValid() helper methods

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=42653





--- Comment #4 from Antonio Gomes <tonikitoo at webkit.org>  2010-07-20 11:48:10 PST ---
Other possible users of isValid() and maybe IntSize::invalid() 

static void constructDeletedValue(IntSize& slot)
{
  new (&slot) IntSize(-1, -1);
}

static bool isDeletedValue(const IntSize& value)
{
  return value.width() == -1 && value.height() == -1;
}

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