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How can I convert NSDictionary to NSData and vice versa?
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This is a very elegant solution for most Mac OS developers.
– mjl007
Mar 27 '18 at 23:31
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How to create an array of 20 random bytes?
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For those wanting a more secure way to create a random byte array, yes the most secure way is:
byte[] bytes = new byte[20];
SecureRandom.getInstanceStrong().nextBytes(bytes);
BUT your threads might block if there is not enough r...
What is copy-on-write?
... also used in maintenance of instant snapshot on database servers like Microsoft SQL Server 2005. Instant snapshots preserve a static view of a database by storing a pre-modification copy of data when underlaying data are updated. Instant snapshots are used for testing uses or moment-dependent repor...
What is the difference between a directory and a folder?
Most people use the terms "folder" and "directory" interchangeably. From a programmer point of view, is there a difference, and if so, what is it? Does it depend on the OS, or is there a broad, general consensus? This at least suggests that there is a difference.
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Difference between “on-heap” and “off-heap”
...anagement and usage of the off-heap store aren't very evident in the link posted in the question, so it would be wise to check out the details of Terracotta BigMemory, which is used to manage the off-disk store. BigMemory (the off-heap store) is to be used to avoid the overhead of GC on a heap that ...
Combining multiple git repositories
...ackup of your phd directory: I don't want to be held responsible for your losing years of hard work! ;-)
$ cp -r phd phd-backup
Move the content of phd/code to phd/code/code, and fix the history so that it looks like it has always been there (this uses git's filter-branch command):
$ cd phd/code...
BackgroundWorker vs background Thread
... out of the loop. This event is signaled when from my overridden Form.Dispose() .
11 Answers
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How do I create/edit a Manifest file?
... your application.
Ask users to trust your application
Add supported OS
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How to get the name of enumeration value in Swift?
...rne"
Note that you can customise what is printed in each of these scenarios:
extension City: CustomStringConvertible {
var description: String {
return "City \(rawValue)"
}
}
print(city)
// prints "City 1"
extension City: CustomDebugStringConvertible {
var debugDescription: ...
Swapping two variable value without using third variable
...mp;y);
# endif
}
return x + y;
}
Compiled using:
gcc -Os main.c -o swap
The xor version takes
real 0m2.068s
user 0m2.048s
sys 0m0.000s
Where as the version with the temporary variable takes:
real 0m0.543s
user 0m0.540s
sys 0m0.000s
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