Why does Swift crash my CFBitVector ?
Why does Swift crash my CFBitVector ?
- Subject: Why does Swift crash my CFBitVector ?
- From: "Gerriet M. Denkmann" <email@hidden>
- Date: Sun, 06 Jul 2014 16:14:14 +0700
class CrashVector
{
let lengthInBits : CFIndex = 133 // must be > 128
let badIndex : CFIndex = 129 // 128 ≤ badIndex < lengthInBits
func makeCrash()
{
let bitVector = CFBitVectorCreateMutable( kCFAllocatorDefault, lengthInBits )
let bitCount = CFBitVectorGetCount( bitVector )
println("got BitVector with \(bitCount) bits") // why does it say 0 instead of 133 ?
println("makeCrash will set bit \(badIndex) in BitVector of size \(lengthInBits)") // why does this crash ?
CFBitVectorSetBitAtIndex( bitVector, badIndex, 1 )
}
}
What am I doing wrong?
Gerriet.
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