On Wed, May 20, 2009 at 1:00 PM, John Harper <j...@apple.com> wrote: > CGRectZero is the rectangle at point (0, 0) with zero size. For an empty > rectangle that will work correctly with CGRectUnion you need to use > CGRectNull instead.
I guess the docs need to be corrected then since the following implies CGRectZero will work as well (still not sure why a zero width/height rectangle should add to a union since be definition it has not extent/area). "if one of the rectangles has 0 (or negative) width or height, a copy of the other rectangle is returned;" -Shawn _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
