Sent from my iPhone
> On 2013/12/07, at 0:27, Graham Cox <graham....@bigpond.com> wrote:
>
>
>> On 6 Dec 2013, at 11:26 am, Graham Cox <graham....@bigpond.com> wrote:
>>
>> NSBlockOperation* op = [NSBlockOperation
>> blockOperationWithBlock:^
>> {
>> CGContextClipToRect( ncx, tileRect );
>>
>> [self drawTile:tileRect inContext:ncx];
>> }];
>
>
> A question for blocks experts:
>
> Is the value of <tileRect> here captured when the block is created,or when it
> is run?
>
> If the latter, it’s going to be probably wrong most of the time, so how can I
> make sure it is captured when the block is created?
>
> ―Graham
>
>
> _________________
It's the latter IIRC
You'll want to capture it outside and prefix it to be block scoped.
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