> On 13 Sep 2016, at 15:20, Quincey Morris
> wrote:
>
>> On Sep 13, 2016, at 00:57 , Gerriet M. Denkmann wrote:
>>
>> I was struggling to find a solution which is thread safe.
>
> Your problem didn’t really need thread safety,
> On 13 Sep 2016, at 14:14, Stephen J. Butler wrote:
>
> This site suggests a version using withUnsafeMutableBufferPointer:
>
> http://blog.human-friendly.com/swift-arrays-are-not-threadsafe
>
> let nbrOfThreads = 8
> let step = 2
> let itemsPerThread = number * step
On Sep 12, 2016, at 23:52 , Gerriet M. Denkmann wrote:
>
> I tried a variation of my function. This does not crash (not even in Debug
> builds), but takes twice the memory and is about four times slower:
I no longer understand what we’re doing here. Based on the code
On 13 Sep 2016, at 05:29, Jens Alfke wrote:
>
> The Bool type is one byte in size.
>
> C++ has a specialization for std::vector that makes it a true bit
> array, but I’m not sure if Swift’s generic system is powerful enough to be
> able to entirely switch out the
This site suggests a version using withUnsafeMutableBufferPointer:
http://blog.human-friendly.com/swift-arrays-are-not-threadsafe
let nbrOfThreads = 8
let step = 2
let itemsPerThread = number * step
let bitLimit = nbrOfThreads * itemsPerThread
var bitfield = [Bool](count: bitLimit,
> On 12 Sep 2016, at 22:49, Jens Alfke wrote:
>
>
>> On Sep 12, 2016, at 6:42 AM, Gerriet M. Denkmann
>> wrote:
>>
>> So: is the code ok and the compiler broken in Debug mode?
>> Or is the code fundamentally wrong and that it works in Release is