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How to show all parents and subclasses of a class in IntelliJ IDEA?
When I'm editing a Java class in Eclipse, when my cursor is over a class variable, I can do Ctrl + T to have a popup that shows all its parents and subclasses. What is the equivalent in IntelliJ?
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Why is SSE scalar sqrt(x) slower than rsqrt(x) * x?
I've been profiling some of our core math on an Intel Core Duo, and while looking at various approaches to square root I've noticed something odd: using the SSE scalar operations, it is faster to take a reciprocal square root and multiply it to get the sqrt, than it is to use the native sqrt opcode!...
Setting environment variables on OS X
What is the proper way to modify environment variables like PATH in OS X?
31 Answers
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What are the most widely used C++ vector/matrix math/linear algebra libraries, and their cost and be
It seems that many projects slowly come upon a need to do matrix math, and fall into the trap of first building some vector classes and slowly adding in functionality until they get caught building a half-assed custom linear algebra library, and depending on it.
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Portable way to get file size (in bytes) in shell?
On Linux, I use stat --format="%s" FILE , but Solaris I have access to doesn't have stat command. What should I use then?
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Create timestamp variable in bash script
I am trying to create a timestamp variable in a shell script to make the logging a little easier. I want to create the variable at the beginning of the script and have it print out the current time whenever I issue echo $timestamp . It proving to be more difficult then I thought. Here are some thin...
How do I view all commits for a specific day?
I've already looked at the relevant docs from git-scm.com and gitref.org , but I can't seem to figure this out.
5 Answe...
How to detect total available/free disk space on the iPhone/iPad device?
I'm looking for a better way to detect available/free disk space on the iPhone/iPad device programmatically.
Currently I'm using the NSFileManager to detect the disk space. Following is the snippet of the code which does the job for me:
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How to use enum values in f:selectItem(s)
... dropdown so I can select a status on my question. Is it possible to make the f:selectItem more flexible considering what happens if the order of the enums changes, and if the list was large? And could I do this better? And is it possible to automatically "select" the item that the question have?
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