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How to trim whitespace from a Bash variable?
...e trim-from-end operation greedy. This is nested in a non-greedy trim-from-start, so in effect, you trim " " from the start. Then, swap %, #, and * for the end spaces. Bam!
– Mark G.
Nov 12 '14 at 17:04
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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...
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
share
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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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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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What modern C++ libraries should be in my toolbox? [closed]
... been out of the C++ game for about 10 years and I want to get back in and start on a commercial app. What libraries are in use these days?
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How do SO_REUSEADDR and SO_REUSEPORT differ?
... the wonderful world of portability... or rather the lack of it. Before we start analyzing these two options in detail and take a deeper look how different operating systems handle them, it should be noted that the BSD socket implementation is the mother of all socket implementations. Basically all ...
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))
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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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