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Why is C so fast, and why aren't other languages as fast or faster? [closed]

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Fastest way to check if a file exist using standard C++/C++11/C?

...e 100,000 calls averaged over 5 runs, Method exists_test0 (ifstream): **0.485s** Method exists_test1 (FILE fopen): **0.302s** Method exists_test2 (posix access()): **0.202s** Method exists_test3 (posix stat()): **0.134s** The stat() function provided the best performance on my system (Linux, comp...
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Hg: How to do a rebase like git's rebase

... answered Apr 20 '10 at 4:14 Ry4an BraseRy4an Brase 76.6k66 gold badges142142 silver badges166166 bronze badges ...
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Python “extend” for a dictionary

...| edited Jan 18 '19 at 18:41 phoenix 3,20611 gold badge2727 silver badges3131 bronze badges answered Feb...
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Trying to embed newline in a variable in bash [duplicate]

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Extract traceback info from an exception object

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How to throw an exception in C?

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C++ code file extension? .cc vs .cpp [closed]

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Undefined reference to static constexpr char[]

... answered Nov 4 '11 at 23:22 Kerrek SBKerrek SB 415k7676 gold badges781781 silver badges10021002 bronze badges ...
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Get statistics for each group (such as count, mean, etc) using pandas GroupBy?

... 458 On groupby object, the agg function can take a list to apply several aggregation methods at on...