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Real world use cases of bitwise operators [closed]

...checksums, parity, stop bits, flow control algorithms, and so on, which usually depend on the logic values of individual bytes as opposed to numeric values, since the medium may only be capable of transmitting one bit at a time. Compression, Encryption Both of these are heavily dependent on bitwise ...
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How to delete last item in list?

... then: #!/usr/bin/env python # coding: utf-8 from timer import Timer if __name__ == '__main__': a, record = None, [] while not a == '': with Timer() as t: # everything in the block will be timed a = input('Type: ') record.append(t.elapsed_s) # drop the last...
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Call a “local” function within module.exports from another function in module.exports?

How do you call a function from within another function in a module.exports declaration? 8 Answers ...
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Timeout function if it takes too long to finish [duplicate]

...nal class TimeoutError(Exception): pass def timeout(seconds=10, error_message=os.strerror(errno.ETIME)): def decorator(func): def _handle_timeout(signum, frame): raise TimeoutError(error_message) def wrapper(*args, **kwargs): signal.signal(signal.SI...
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Difference between std::result_of and decltype

... result_of was introduced in Boost, and then included in TR1, and finally in C++0x. Therefore result_of has an advantage that is backward-compatible (with a suitable library). decltype is an entirely new thing in C++0x, does not restrict only to return type of a function, and is a language fe...
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javac is not recognized as an internal or external command, operable program or batch file [closed]

...nal or external command... error message. In a nutshell, you have not installed Java correctly. Finalizing the installation of Java on Windows requires some manual steps. You must always perform these steps after installing Java, including after upgrading the JDK. Environment variables and PATH (...
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Cron job every three days

... The answer is not correct because neither suggestion actually runs the job every 3 days. 0 0 */3 * * means run on the 1st, 4th, 7th, etc. (*/3 means 1-31/3 means 1,4,7...31) so the gap will be smaller at the end of the month. (It'll run 2 days in a row if the previous month had 3...
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C# 4.0 optional out/ref arguments

Does C# 4.0 allow optional out or ref arguments? 9 Answers 9 ...
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Resharper- Find all unused classes

...g the "Find Usages" option. Is there any way I can see or get the list of all the unused classes or files in my project ? ...
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Passing base64 encoded strings in URL

... en.wikipedia.org/wiki/Base64#URL_applications — it says clearly that escaping ‘makes the string unnecessarily longer’ and mentions the alternate charset variant. – Michał Górny Sep 3 '09 at 23:02 ...