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GCC -fPIC option
...when we want to link shared object to the exe, then we are not sure of the start address assigned to shared object as it will depend upon the order the shared objects were linked.That being said, asm instruction inside .so will always have different virtual address depending upon the process its li...
How to loop backwards in python? [duplicate]
...ease use xrange instead of range (doesn't matter much for small ranges but starts mattering for large ones).
– mzz
Aug 13 '10 at 12:51
9
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FFmpeg: How to split video efficiently?
....mp4 -cat file2.mp4 output.mp4
Or if you need split by time, use -splitx StartTime:EndTime:
MP4Box -add input.mp4 -splitx 0:15 -new split.mp4
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What is the fastest way to send 100,000 HTTP requests in Python?
...range(concurrent):
t = Thread(target=doWork)
t.daemon = True
t.start()
try:
for url in open('urllist.txt'):
q.put(url.strip())
q.join()
except KeyboardInterrupt:
sys.exit(1)
This one is slighty faster than the twisted solution and uses less CPU.
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Index (zero based) must be greater than or equal to zero
...
String.Format must start with zero index "{0}" like this:
Aboutme.Text = String.Format("{0}", reader.GetString(0));
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How do you determine the size of a file in C?
...hould be using. We can redefine that to be 128 bits in a few years when we start having 16 exabyte files hanging around.
If you're on windows, you should use GetFileSizeEx - it actually uses a signed 64 bit integer, so they'll start hitting problems with 8 exabyte files. Foolish Microsoft! :-)
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Multiprocessing: How to use Pool.map on a function defined in a class?
...ocess(target=spawn(f), args=(c, x)) for x, (p, c) in izip(X, pipe)]
[p.start() for p in proc]
[p.join() for p in proc]
return [p.recv() for (p, c) in pipe]
if __name__ == '__main__':
print parmap(lambda x: x**x, range(1, 5))
...
Runtime vs. Compile time
... well formed---a meaningful program in whatever language.
It's possible to start running the program. (The program might fail immediately, but at least we can try.)
What are the inputs and outputs?
Input was the program being compiled, plus any header files, interfaces, libraries, or other voodo...
No newline at end of file
... Thinking about it differently, let's explore the inverse. If there was a "start-of-line" marker instead of "end-of-line", would you omit the "start-of-line" character on the first line?
– Joe
Apr 24 '14 at 3:50
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What are attributes in .NET?
...me)
{
StopWatch stopWatch = new StopWatch();
stopWatch.Start();
targetMethod.Invoke(target, args);
stopWatch.Stop();
HandleTimingOutput(targetMethod, stopWatch.Duration);
}
else
{
targetMethod.Invoke(target, args);
}
}
Declaring t...