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Why do Python's math.ceil() and math.floor() operations return floats instead of integers?
...n's integers are now arbitrary precision, it wasn't always this way. The standard library functions are thin wrappers around the equivalent C library functions.
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Read file from line 2 or skip header row
How can I skip the header row and start reading a file from line2?
8 Answers
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Make install, but not to default directories?
...s, but distributed along with the software, simply open it up in an editor and change it. The install target directory is probably defined in a variable somewhere.
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How do I find all of the symlinks in a directory tree?
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This will recursively traverse the /path/to/folder directory and list only the symbolic links:
ls -lR /path/to/folder | grep ^l
If your intention is to follow the symbolic links too, you should use your find command but you should include the -L option; in fact the find man page say...
How does one parse XML files? [closed]
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It's very simple. I know these are standard methods, but you can create your own library to deal with that much better.
Here are some examples:
XmlDocument xmlDoc= new XmlDocument(); // Create an XML document object
xmlDoc.Load("yourXMLFile.xml"); // Load the ...
initializer_list and move semantics
...ist existed to keep an array of temporaries until they were move'd.
begin and end for initializer_list return const T *, so the result of move in your code is T const && — an immutable rvalue reference. Such an expression can't meaningfully be moved from. It will bind to an function param...
Unit testing for C++ code - Tools and methodology [closed]
...entioned in other answers, he was involved in the creation of both CppUnit and CppUnitLite.
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How do I type using my keyboard on the iphone simulator?
...esponding to keystrokes, this fixed it.
Quit the simulator.
Go to finder and press (command+shift+G) then navigate ~/Library/Preferences.
Move com.apple.iphonesimulator.plist to the trash.
Try launching your iPhone app in the simulator again.
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Remove Last Comma from a string
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This will remove the last comma and any whitespace after it:
str = str.replace(/,\s*$/, "");
It uses a regular expression:
The / mark the beginning and end of the regular expression
The , matches the comma
The \s means whitespace characters (space, tab...
Set attribute without value
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@Andrew I believe that you're looking for the removeAttr/prop functions. It depends which attribute you're trying to remove.
– Lix
Nov 10 '18 at 21:30
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