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Why do we need the “event” keyword while defining events?
... This is a thousand times better than MSDN's official one-line em>x m>planation: 'The event keyword is used to declare an event in a publisher class.'
– cowlinator
Apr 13 '16 at 18:17
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Generating random integer from a range
...distributed solution is
output = min + (rand() % static_cast<int>(mam>x m> - min + 1))
Em>x m>cept when the size of the range is a power of 2, this method produces biased non-uniform distributed numbers regardless the quality of rand(). For a comprehensive test of the quality of this method, please r...
regem>x m> for matching something if it is not preceded by something else
So with regem>x m> in java, I want to write a regem>x m> that will match if and only if the pattern is not preceded by certain characters. For em>x m>ample:
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How to abandon a hg merge?
...o do the entire operation, or at least some find and replace with regular em>x m>pressions. Something as simple as replacing what matches ^____ (use 4 spaces instead of underscores) with __ (2 spaces), repeated a few times (unless you have insanely some nested code) should work.
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How to calculate moving average without keeping the count and data-total?
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You can simply do:
double approm>x m>RollingAverage (double avg, double new_sample) {
avg -= avg / N;
avg += new_sample / N;
return avg;
}
Where N is the number of samples where you want to average over.
Note that this approm>x m>imation is equivalen...
How to repeat a string a variable number of times in C++?
...way to repeat strings in C++ equivalent to the * operator in Python or the m>x m> operator in Perl. If you're repeating a single character, the two-argument constructor (as suggested by previous answers) works well:
std::string(5, '.')
This is a contrived em>x m>ample of how you might use an ostringstream ...
How to resolve symbolic links in a shell script
Given an absolute or relative path (in a Unim>x m>-like system), I would like to determine the full path of the target after resolving any intermediate symlinks. Bonus points for also resolving ~username notation at the same time.
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how to provide a swap function for my class?
...wap(Bar& lhs, Bar& rhs) {
lhs.swap(rhs);
}
...
You mean an em>x m>plicit specialization. Partial is still something else and also not possible for functions, only structs / classes. As such, since you can't specialize std::swap for template classes, you have to provide a free function in y...
How to check if a process id (PID) em>x m>ists
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To check for the em>x m>istence of a process, use
kill -0 $pid
But just as @unwind said, if you're going to kill it anyway, just
kill $pid
or you will have a race condition.
If you want to ignore the tem>x m>t output of kill and do something base...
how do I check in bash whether a file was created more than m>x m> time ago?
I want to check in linum>x m> bash whether a file was created more than m>x m> time ago.
8 Answers
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