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When to dispose CancellationTokenSource?
The class CancellationTokenSource is disposable. A quick look in Reflector proves usage of KernelEvent , a (very likely) unmanaged resource.
Since CancellationTokenSource has no finalizer, if we do not dispose it, the GC won't do it.
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Unit testing code with a file system dependency
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There's really nothing wrong with this, it's just a question of whether you call it a unit test or an integration test. You just have to make sure that if you do interact with the file system, there are no unintended side effects. Specifically, make sure that...
Difference between a Seq and a List in Scala
I've seen in many examples that sometimes a Seq is being used, while other times is the List...
5 Answers
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Why would anybody use C over C++? [closed]
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Joel's answer is good for reasons you might have to use C, though there are a few others:
You must meet industry guidelines, which are easier to prove and test for in C.
You have tools to work with C, but not C++ (think not just about th...
Unit testing for C++ code - Tools and methodology [closed]
I'm working on a large c++ system that is has been in development for a few years now. As part of an effort to improve the quality of the existing code we engaged on a large long-term refactoring project.
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MySQL vs MySQLi when using PHP [closed]
Which is better, MySQL or MySQLi? And why? Which should I use?
6 Answers
6
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Generating all permutations of a given string
What is an elegant way to find all the permutations of a string. E.g. permutation for ba , would be ba and ab , but what about longer string such as abcdefgh ? Is there any Java implementation example?
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Why would anyone use set instead of unordered_set?
C++0x is introducing unordered_set which is available in boost and many other places. What I understand is that unordered_set is hash table with O(1) lookup complexity. On the other hand, set is nothing but a tree with log(n) lookup complexity. Why on earth would anyone use set instead ...
Python: Is it bad form to raise exceptions within __init__?
Is it considered bad form to raise exceptions within __init__ ? If so, then what is the accepted method of throwing an error when certain class variables are initialized as None or of an incorrect type?
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What's a monitor in Java?
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A monitor is mechanism to control concurrent access to an object.
This allows you to do:
Thread 1:
public void a()
{
synchronized(someObject) {
// do something (1)
}
}
Thread 2:
public void b()
{
synchronized(...