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How to recursively find the latest modified file in a directory?
...
If order matters, you can switch use sort -rn | head -3 instead of sort -n | tail -3. One version gives the files from oldest to newest, while the other goes from newest to oldest.
– Don Faulkner
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Why is my program slow when looping over exactly 8192 elements?
...in.
Now we can see the problem is the same in this question: Why does the order of the loops affect performance when iterating over a 2D array?
You are iterating the matrix column-wise instead of row-wise.
To solve this problem, you should interchange the two loops.
for(j=1;j<SIZE-1;j++) {
...
Mismatched anonymous define() module
...s with anonymous modules is to overwrite the requirejs.onError function in order to prevent the default error exception thrown by requirejs which stops succesive modules or code to be executed.
– xtrm
May 22 '17 at 16:42
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Stopping scripters from slamming your website
...of the same page, following every link on a page quickly, or filling in an order form too fast to be human.
If they fail the check x times in a row (say, 2 or 3), give that IP a timeout or other such measure. Then at the end of the timeout, dump them back to the check again.
Since you have unreg...
What does the term “porcelain” mean in Git?
...interface to Porcelain commands on the other hand are subject to change in order to improve the end user experience.
See "How do I programmatically determine if there are uncommitted changes?" as an example to using plumbing commands instead of porcelain ones.
Note: A porcelain command can have...
How to get the primary IP address of the local machine on Linux and OS X? [closed]
...(according to the documentation) one cannot make any assumptions about the order of the addresses. So it may well be some internal network (like the network on which virtual machines are living). The other method seems good.
– Adam Ryczkowski
Sep 23 '14 at 23:2...
back button callback in navigationController in iOS
...IBarButtonItem alloc] initWithTitle:@”back”
style:UIBarButtonItemStyleBordered
target:self
action:@selector(handleBack:)];
self.navigationItem.leftBarButtonItem = backButton;
[backButton release];
}
- (void) handleBack:(id)sender
{
// pop to root view controller
[self.navigationController popT...
NSNotificationCenter addObserver in Swift
...erit from an Objective-C object, you must prefix your method with @objc in order to use it as a selector.
@objc private func batteryLevelChanged(notification: NSNotification){
//do stuff using the userInfo property of the notification object
}
See NSNotificationCenter Class Reference, In...
Android - Launcher Icon Size
...B 512 x 512. This is so large so that Google can rescale it to any size in order to advertise your app throughout the Google Play Store and not add pixelation to your logo.
Basically, all of the other icons should be in proportion to the 'baseline' icon, MDPI at 48 x 48.
LDPI is MDPI x 0.75.
TVDP...
Lock-free multi-threading is for real threading experts
...n't it?
Most of the fun however can come from ensuring correct load/store ordering.
Contrary to one's intuitions, CPUs are free to reorder memory reads/writes - they are very smart, by the way: you will have a hard time observing this from a single thread. You will, however run into issues when you...