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How to prevent gcc optimizing some statements in C?
...eeds. This has the advantage of just applying to a single function and not all functions defined in the same file.
Usage example:
void __attribute__((optimize("O0"))) foo(unsigned char data) {
// unmodifiable compiler code
}
...
How to get the CPU Usage in C#?
I want to get the overall total CPU usage for an application in C#. I've found many ways to dig into the properties of processes, but I only want the CPU usage of the processes, and the total CPU like you get in the TaskManager.
...
find: missing argument to -exec
...
To test such things just add an echo before the commands and see what it does.
– Marian
Jun 2 '10 at 22:22
2...
Iterate over the lines of a string
...())'
10000 loops, best of 3: 61.5 usec per loop
Note we need the list() call to ensure the iterators are traversed, not just built.
IOW, the naive implementation is so much faster it isn't even funny: 6 times faster than my attempt with find calls, which in turn is 4 times faster than a lower-lev...
How do I show/hide a UIBarButtonItem?
...ere i wanted to hide the button or show it based on some condition. So i m testing for the condition in "If" and if true i am setting the button to nil in viewDidLoad method of the target view.
This may not be relevant to your problem exactly but something similar incase if you want to hide buttons...
How to normalize a path in PowerShell?
...depending on your definiton of a valid path. :-) FWIW, even the built-in Test-Path <path> -IsValid fails on paths rooted in drives that don't exist.
– Keith Hill
Feb 13 '11 at 3:42
...
Random string generation with upper case letters and digits
...dom.choices(string.ascii_uppercase + string.digits, k=N))
A cryptographically more secure version; see https://stackoverflow.com/a/23728630/2213647:
''.join(random.SystemRandom().choice(string.ascii_uppercase + string.digits) for _ in range(N))
In details, with a clean function for further reus...
Include jQuery in the JavaScript Console
...ndChild(e);})(document.createElement('script'),'//code.jquery.com/jquery-latest.min.js')
Below is the formatted code:
javascript: (function(e, s) {
e.src = s;
e.onload = function() {
jQuery.noConflict();
console.log('jQuery injected');
};
document.head.appendChild(e)...
Check if all elements in a list are identical
... = next(iterator)
except StopIteration:
return True
return all(first == rest for rest in iterator)
One-liner:
def checkEqual2(iterator):
return len(set(iterator)) <= 1
Also one-liner:
def checkEqual3(lst):
return lst[1:] == lst[:-1]
The difference between the 3 versi...
Simple example of threading in C++
...ill execute, followed by the function's parameters. The thread is automatically started upon construction.
If later on you want to wait for the thread to be done executing the function, call:
t1.join();
(Joining means that the thread who invoked the new thread will wait for the new thread to fi...