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Which, if any, C++ compilers do tail-recursion optimization?
...t it would work perfectly well to do tail-recursion optimization in both C and C++, yet while debugging I never seem to see a frame stack that indicates this optimization. That is kind of good, because the stack tells me how deep the recursion is. However, the optimization would be kind of nice as w...
List of All Locales and Their Short Codes?
I'm looking for a list of all locales and their short codes for a PHP application I am writing. Is there much variation in this data between platforms?
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Importing from builtin library when module with same name exists
...pec.loader.exec_module(module)
So, you can load any .py file from a path and set the module name to be whatever you want. So just adjust the module_name to be whatever custom name you'd like the module to have upon importing.
To load a package instead of a single file, file_path should be the pat...
What should be in my .gitignore for an Android Studio project?
What files should be in my .gitignore for an Android Studio project?
31 Answers
31
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Why is address zero used for the null pointer?
...ll pointer in C source while represented differently at runtime. The C++ standard has a note that makes clear that converting "an integral constant expression with value zero always yields a null pointer, but converting other expressions that happen to have value zero need not yield a null pointer"....
Running a cron every 30 seconds
...e offset by 30 seconds:
# Need these to run on 30-sec boundaries, keep commands in sync.
* * * * * /path/to/executable param1 param2
* * * * * ( sleep 30 ; /path/to/executable param1 param2 )
You'll see I've added comments and formatted to ensure it's easy to keep them synchronised.
Bo...
Synchronise ScrollView scroll positions - android
I have 2 ScrollViews in my android layout. How can I synchronise their scroll positions?
4 Answers
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How to tell if JRE or JDK is installed
... testing. However, when I got a java application working on this computer, and then tried it on another, it complained that JDK was required. How can I check if JDK was somehow installed on my system? Note: the computer in question is a Mac.
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What's the difference between getRequestURI and getPathInfo methods in HttpServletRequest?
... lightweight front-controller. I need to match request paths to different handlers (actions) in order to choose the correct one.
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return statement vs exit() in main()
...he return statements because I feel it's like reading any other function and the flow control when I'm reading the code is smooth (in my opinion). And even if I want to refactor the main() function, having return seems like a better choice than exit() .
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