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When should we use mutex and when should we use semaphore
...w I remember when to use what -
Semaphore:
Use a semaphore when you (thread) want to sleep till some other thread tells you to wake up. Semaphore 'down' happens in one thread (producer) and semaphore 'up' (for same semaphore) happens in another thread (consumer)
e.g.: In producer-consumer problem,...
Short description of the scoping rules?
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martineau
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answered Nov 15 '08 at 12:47
Rizwan KassimRizwan Kassim...
Why git can't remember my passphrase under Windows
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I realize that this question is coming up on two years old, but I had the same issue and several answers here did not completely answer the question for me. Here is two step-by-step solutions, depending on whether you use TortoiseGit in addition to msysgit or not.
First solution Assumes Win...
Link to all Visual Studio $ variables
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PedroPedro
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9
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Latest jQuery version on Google's CDN
I read in the official doc of the Google CDN that this is the src to jQuery:
5 Answers
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File input 'accept' attribute - is it useful?
Implementing a file upload under html is fairly simple, but I just noticed that there is an 'accept' attribute that can be added to the <input type="file" ...> tag.
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Drawing Isometric game worlds
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Update: Corrected map rendering algorithm, added more illustrations, changed formating.
Perhaps the advantage for the "zig-zag" technique for mapping the tiles to the screen can be said that the tile's x and y coordinates are on the vertical and horizontal axes.
"Dr...
How does C compute sin() and other math functions?
...rts by computing some value closer to 0 that can be fed to sin or cos instead.
There's yet another branch to deal with x being a NaN or infinity.
This code uses some numerical hacks I've never seen before, though for all I know they might be well-known among floating-point experts. Sometimes a few...
String, StringBuffer, and StringBuilder
...Buffer and StringBuilder are mutable so they can change their values.
Thread-Safety Difference:
The difference between StringBuffer and StringBuilder is that StringBuffer is thread-safe. So when the application needs to be run only in a single thread then it is better to use StringBuilder. StringB...
Performance difference for control structures 'for' and 'foreach' in C#
...he difference to performance won't be significant, but the difference to readability favours the foreach loop.
I'd personally use LINQ to avoid the "if" too:
foreach (var item in list.Where(condition))
{
}
EDIT: For those of you who are claiming that iterating over a List<T> with foreach p...