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When should I use Struct vs. OpenStruct?
... the other. They imply a more concrete relationship amongst the data than does a Hash, but they don't have the instance methods as would a class. A bunch of options for a function, for example, make sense in a hash; they're only loosely related. A name, email, and phone number needed by a functio...
Error “gnu/stubs-32.h: No such file or directory” while compiling Nachos source code
...ssing the 32 bit libc dev package:
On Ubuntu it's called libc6-dev-i386 - do sudo apt-get install libc6-dev-i386. See below for extra instructions for Ubuntu 12.04.
On Red Hat distros, the package name is glibc-devel.i686 (Thanks to David Gardner's comment).
On CentOS 5.8, the package name is gl...
How do I revert all local changes in Git managed project to previous state?
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If you want to revert changes made to your working copy, do this:
git checkout .
If you want to revert changes made to the index (i.e., that you have added), do this. Warning this will reset all of your unpushed commits to master!:
git reset
If you want to revert a change tha...
How do I “un-revert” a reverted Git commit?
... commit , and then reverted using revert , what is the best way to then undo that revert?
9 Answers
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How to loop through a directory recursively to delete files with certain extensions
...h a directory recursively and remove all files with extension .pdf and .doc . I'm managing to loop through a directory recursively but not managing to filter the files with the above mentioned file extensions.
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ViewDidAppear is not called when opening app from background
...ks fine but when I close my app and than again I open my app but the value doesn't change because viewDidLoad , viewDidAppear and viewWillAppear nothing get called. How can I call when I open my app. Do I have to do anything from applicationDidBecomeActive ?
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Algorithm to detect intersection of two rectangles?
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The standard method would be to do the separating axis test (do a google search on that).
In short:
Two objects don't intersect if you can find a line that separates the two objects. e.g. the objects / all points of an object are on different sides of th...
How do I run a simple bit of code in a new thread?
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@EdPower, does this apply only to Winforms.. or will it work in Web Forms..?
– MethodMan
Jan 28 '16 at 3:31
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How do I write the 'cd' command in a makefile?
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gcc -Wall -o myTest myTest.c
This is especially crucial when doing destructive work, such as clean-up, as you'll otherwise destroy the wrong stuff, should the cd fail for whatever reason.
A common usage though is to call make in the sub directory, which you might want to look into. Th...
Should one use < or
...Generic programming with STL iterators mandates use of !=. It (accidental double incrementing) hasn't been a problem for me. I do agree that for indices < (or > for descending) are more clear and conventional.
– Jonathan Graehl
Sep 18 '09 at 18:57
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