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Differences between std::make_unique and std::unique_ptr with new
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The motivation behind make_unique is primarily two-fold:
make_unique is safe for creating temporaries, whereas with explicit use of new you have to remember the rule about not using unnamed temporaries.
foo(make_unique<T>(), make_uniq...
Named regular expression group “(?Pregexp)”: what does “P” stand for?
In Python, the (?P<group_name>…) syntax allows one to refer to the matched string through its name:
3 Answers
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How do I tell Matplotlib to create a second (new) plot, then later plot on the old one?
I want to plot data, then create a new figure and plot data2, and finally come back to the original plot and plot data3, kinda like this:
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Non-type template parameters
I understand that the non-type template parameter should be a constant integral expression. Can someone shed light why is it so ?
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CSS :after not adding content to certain elements
I'm having trouble understanding the behavior of the CSS :after property. According to the spec ( here and here ):
3 An...
How to get error message when ifstream open fails
How to get error message as string?
4 Answers
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Rename specific column(s) in pandas
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data.rename(columns={'gdp':'log(gdp)'}, inplace=True)
The rename show that it accepts a dict as a param for columns so you just pass a dict with a single entry.
Also see related
share
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Should *.xccheckout files in Xcode5 be ignored under VCS?
Apple has introduced a new project-related type of file in Xcode 5: "xccheckout".
5 Answers
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How do I handle the window close event in Tkinter?
How do I handle the window close event (user clicking the 'X' button) in a Python Tkinter program?
6 Answers
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What kind of Garbage Collection does Go use?
...-the-world/concurrent collector
stop-the-world part limited by a 10ms deadline
CPU cores dedicated to running the concurrent collector
tri-color mark-and-sweep algorithm
non-generational
non-compacting
fully precise
incurs a small cost if the program is moving pointers around
lower latency, but most...