On Nov 19, 2009, at 2:39 PM, Dave DeLong wrote:
> When I print out the size or rect that these return, I invariably get either
> {0, 0} or something absurd like {{1.17076e-318, 2.29357e-314}, {2.30359e-314,
> 2.1224e-314}} (that's just running the rect through NSStringFromRect())
Make sure the receiver (the NSAttributedString) isn't nil. The Obj-C runtime
gives undefined results for a struct-based method return value if the receiver
is nil; so you'll end up with garbage like this. (This is because it doesn't
know at runtime how large the struct is, so it can't safely fill it in with
zeroes.)
Put in something like NSAssert(str!=nil, @"str is nil"); before the call.
—Jens_______________________________________________
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