I have an object system which I wrote in C which contains reference counting for objects (objects are just structs which have a retainCount int). If I have a block like the following:
I\'m trying to integrate some GCD into my code, and have found that a severe bottleneck is a bubble comparison I am performing between objects in a large array.Here is the original code:
Performance wise, on a relatively large array (so far the usual count for the original array is ±20000), which method is bes开发者_如何转开发t suited to filter it? Blocks or predicates?
I\'m trying to create recursion using blocks. It works for a while, but eventually it crashes and gives me a bad access exception. This is my code:
Let\'s say I need to communicate with a class that provides a protocol and calls delegate methods when an operation is complete, as so:
I\'ve a big headache with the topic. I\'m working on an application that needs to poll a webserver regularly, in order to check for new data. Based on the returned information, I wish to push a local
I would like to add functions by creating a category for Objective-C Blocks. __block int (^aBlock)(int) = ^int( int n ){
With reference to the code below, once a block has been put into an array, how could you take that block object and run the actual code in the block.
Don\'t know a whole lot about blocks. How would you go about mimicking a repeating NSTimer with dispatch_after()? My problem is that I want to \"pause\" a timer when the app moves to the background, b
If I declare a block like this ^{ DoSomething; } and put it in an insta开发者_开发技巧nce variable, do I need to Block_copy() if I\'m going to keep it around?Yes, you need to copy. Not because they ar
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