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Are global variables bad? [closed]
...th global variables is that since every function has access to these, it becomes increasingly hard to figure out which functions actually read and write these variables.
To understand how the application works, you pretty much have to take into account every function which modifies the global stat...
How to encrypt/decrypt data in php?
... from a reliable random number generator. The following example would be recommended (>= 5.3):
$key_size = 32; // 256 bits
$encryption_key = openssl_random_pseudo_bytes($key_size, $strong);
// $strong will be true if the key is crypto safe
This can be done once or multiple times (if you wish t...
How to include view/partial specific styling in AngularJS
...a ton of research on various solutions to this problem, I think I may have come up with a better solution.
UPDATE 1: Since posting this answer, I have added all of this code to a simple service that I have posted to GitHub. The repo is located here. Feel free to check it out for more info.
UPDATE...
OpenCV C++/Obj-C: Detecting a sheet of paper / Square Detection
... If you didnt change anything, try testing with other images and finally recompile/reinstall opencv.
– karlphillip
Jan 18 '12 at 10:39
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What's the absurd function in Data.Void useful for?
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How do I delete a Git branch locally and remotely?
...ost cases the remote name is origin.
In such a case you'll have to use the command like so.
$ git push -d origin <branch_name>
Delete Local Branch
To delete the local branch use one of the following:
$ git branch -d branch_name
$ git branch -D branch_name
Note: The -d option is an alias...
Exploitable PHP functions
...e to have a grep -able list of red-flag keywords handy when searching a compromised server for back-doors.
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What's the difference between the atomic and nonatomic attributes?
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@bbum Makes sense. I like your comment to another answer that thread-safety is more a model-level concern. From an IBM thread safety definition: ibm.co/yTEbjY "If a class is correctly implemented, which is another way of saying that it conforms to its spec...
Why does C++ require a user-provided default constructor to default-construct a const object?
...user-provided" not "user-declared" and I'm left scratching my head why the committee chose to exclude explicitly-defaulted default constructors from this DR, forcing us to make our classes non-trivial if we want const objects with uninitialized members.
– Oktalist
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Rails 4 multiple image or file upload using carrierwave
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