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What are all the common undefined behaviours that a C++ programmer should know about? [closed]
...754 compatible. If C++ required IEE754 compliance, compilers would need to test and handle the case where the RHS is zero via an explicit check. By making the behaviour undefined, the compiler can avoid that overhead by saying "if you use a non IEE754 FPU, you won't get IEEE754 FPU behaviour".
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Bash script to receive and repass quoted parameters
...he extra level of quoting at all. I.E. just call the above script like:
./test.sh 1 2 "3 4"
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Do I need to manually close an ifstream?
...e() for you automatically because of RAII but will not leave you a way of testing the fail bit as the object no longer exists.
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How does IPython's magic %paste work?
...Optional mouse support
More on this here
To upgrade ipython to the latest version
pip install ipython --upgrade
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What is JavaScript garbage collection?
...ever be collected, and would eventually cause the OS to become unstable in test apps that looped to create crashes. In practice these leaks are usually small, but to keep your code clean you should delete the JavaScript reference to the DOM object.
Usually it is a good idea to use the delete keywo...
Warning: mysql_connect(): [2002] No such file or directory (trying to connect via unix:///tmp/mysql.
...as the packet is sent by the router first. Usually not a big problem while testing, but it may become a problem with large packets of data.
– Kebman
Apr 17 '13 at 22:01
3
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Determine device (iPhone, iPod Touch) with iOS
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Latest update - June 2020: Added iPad Pro 11 2020 (2nd generation), iPad Pro 12.9 2020 (4th generation), Apple Watch 5
Previous update - October 2019: Added iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, iPad (7th generation)
Sw...
Java switch statement multiple cases
...em personally to GLaDOS, and hope she gives them the deadliest sequence of tests she can find.
– animuson♦
Mar 23 '13 at 23:39
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Visual Studio Disabling Missing XML Comment Warning
...ing a macro to do it for a file. Just open the file and execute this macro(Tested in VS2010):
Sub PragmaWarningDisableForOpenFile()
DTE.ActiveDocument.Selection.StartOfDocument()
DTE.ActiveDocument.Selection.NewLine()
DTE.ActiveDocument.Selection.LineUp()
DTE.ActiveDocument.Selecti...
Unicode character as bullet for list-item in CSS
... margin: 0 1em; /* any design */
}
Browser Compatibility
Haven't tested myself, but it should be supported as of IE8.
At least that's what quirksmode & css-tricks say.
You can use conditional comments to apply older/slower solutions like images, or scripts. Better yet, use both with &...