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Is gcc's __attribute__((packed)) / #pragma pack unsafe?
...The symptom probably won't show up on an x86, which just makes the problem more insidious; testing on x86 systems won't reveal the problem. (On the x86, misaligned accesses are handled in hardware; if you dereference an int* pointer that points to an odd address, it will be a little slower than if ...
What is in your Mathematica tool bag? [closed]
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Repeat string to certain length
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Jason Scheirer's answer is correct but could use some more exposition.
First off, to repeat a string an integer number of times, you can use overloaded multiplication:
>>> 'abc' * 7
'abcabcabcabcabcabcabc'
So, to repeat a string until it's at least as long as the le...
Understanding typedefs for function pointers in C
...oes not permit you to do very much inside a signal handler; POSIX is a bit more generous in what is allowed, but officially does not sanction calling fprintf(). I also print out the signal number that was received. In the alarm_handler() function, the value will always be SIGALRM as that is the on...
How to assign a Git SHA1's to a file without Git?
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Quick Sort Vs Merge Sort [duplicate]
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39% more compares in Quick sort than Merge sort but number of swaps in Quick sort are lesser than Merge sort. Swap operation is costlier on CPU than compare operation, as mentioned here. Testing on home laptop Quick sort takes 0....
Creating an empty file in C#
...e.Create(filename).Dispose();
Either way, if you're going to use this in more than one place you should probably consider wrapping it in a helper method, e.g.
public static void CreateEmptyFile(string filename)
{
File.Create(filename).Dispose();
}
Note that calling Dispose directly instead ...
Scroll Element into View with Selenium
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Error: could not find function … in R
...hat function available in R 3.3.1. See also github.com/r-lib/backports for more info. I've added some info for that case, thx for notifying
– Joris Meys
Mar 12 '18 at 19:30
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What is ActiveMQ used for - can we apply messaging concept using a Database?
...tion between different applications easier.
Of course, there are a lot of more detailed features that are only in ActiveMQ, wire protocols like OpenWire, STOMP and MQTT, JMS, EIP together with Apache Camel, message patterns like "request/reply" and "publish/subscribe", JMS Bridging, clustering ("ne...