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What happens to a detached thread when main() exits?
...rom the thread object, allowing
execution to continue independently. Any allocated resources will be
freed once the thread exits.
From pthread_detach:
The pthread_detach() function shall indicate to the implementation
that storage for the thread can be reclaimed when that thread
termin...
How do I vertically center UITextField Text?
...nt. So he will have something like UITextField *textField = [[UITextField alloc] init];. If you use a different variable name (anything other than textField after the *), you need to do yourDifferentVariableNameHere.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter instead.
...
Working with Enums in android
...tes of RAM overhead.
Putting a single entry into a HashMap requires the allocation of an
additional
entry object that takes 32 bytes (see the previous section about
optimized data containers).
A few bytes here and there quickly add
up—app designs that are class- or object-heavy ...
How to overcome root domain CNAME restrictions?
...t them to set the A record on xyz.company.com to point to an IP address we allocate them.
As to how you could cope with a change in IP address I don't think there is a perfect solution. Some ideas are:
Use a NAT or IP load balancer and give your customers an IP address belonging to it. If the IP ...
兼容主流浏览器的JS复制内容到剪贴板 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...ard.swf 的下载地址：http://www.jeffothy.com/weblog/uploads/clipboard.php
但是 Flash 10 时代，上面的方法已经不行了。
因为flash10中规定了只有在swf上进行了真实的操作（比如鼠标点击）才能访问剪切板，而上述方法只是使用了一个隐藏的swf...
Likelihood of collision using most significant bits of a UUID in Java
...iqueness across many machines, you could have a central database table for allocating unique ids, or even batches of unique ids.
If you just need to have uniqueness in one app you can just have a counter (or a counter which starts from the currentTimeMillis()*1000 or nanoTime() depending on your r...
Linux/Unix command to determine if process is running?
...ong enough for PIDs to wrap around, and another process may then have been allocated the same PID you're checking for. stackoverflow.com/questions/11323410/linux-pid-recycling
– claymation
Apr 15 '16 at 3:28
...
How do I detect when someone shakes an iPhone?
...n selecting this new type instead of the base type in IB, or using it when allocating a view).
In the view controller, you want to set this view to become first responder:
- (void) viewWillAppear:(BOOL)animated
{
[shakeView becomeFirstResponder];
[super viewWillAppear:animated];
}
- (void)...
A regular expression to exclude a word/string
...noreme3)
You can add as much ignored words as you like, here is a simple PHP implementation:
$ignoredWords = array('ignoreme', 'ignoreme2', 'ignoreme...');
preg_match('~^/\b([a-z0-9]+)\b(?<!' . implode('|', array_map('preg_quote', $ignoredWords)) . ')~i', $string);
...
Using std Namespace
...just those spefcific names brought into the current namespace. By the same token, I think it would be crazy and a bookkeeping hassle to have 25 or 30 using-declarations when a single using-directive would do the trick just as well.
It's also good to keep in mind that there are times when you must u...