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C# Object Pooling Pattern implementation
...ndom-access pattern, but LIFO makes it significantly easier to implement a Least-Recently-Used freeing strategy (which you said was out of scope, but it's still worth mentioning).
For the resource loading mechanism, .NET already gives us a clean abstraction - delegates.
private Func<Pool<...
Can't specify the 'async' modifier on the 'Main' method of a console app
... @abatishchev You should be using try/catch in your code, at least inside the Task.Run if not more granularly, not letting exceptions float up to the Task. You'll avoid the wrap up problem by putting try/catch around things that can fail.
– Chris Moschini
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How to programmatically send SMS on the iPhone?
...MS from the iPhone itself, it requires some user interaction. But this at least allows you to populate everything, and avoids closing the application.
The MFMessageComposeViewController class is well documented, and tutorials show how easy it is to implement.
iOS 5 Update
iOS 5 includes messagin...
Which is preferred: Nullable.HasValue or Nullable != null?
... (assuming some foos in the collection can be null too), we end up with at least three way to write our function (if we use C# 6) :
public IEnumerable<Foo> GetNonNullFoosWithSomeDoubleValues(IEnumerable<Foo> foos)
{
return foos.Where(foo => foo?.SomeDouble != null);
return ...
Iterate over object attributes in python
...This is a bad idea, I wouldn't even suggest it, but if you're going to, at least provide the caveat.
– Julian
Jul 24 '12 at 18:57
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Bash: infinite sleep (infinite blocking)
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BSD (or at least OS X) doesn't understand sleep infinity either, though it was a cool thing to learn about for Linux. However, while true; do sleep 86400; done ought to be an adequate substitute.
– Ivan X
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Quick-and-dirty way to ensure only one instance of a shell script is running at a time
.../1/flock which appears from the man copyright date to have around since at least 2006. So I made a downvote (-1), nothing personal, just have strong conviction that using the kernel implemented tools provided by the kernel developers is correct.
– Craig Hicks
...
Implicit type conversion rules in C++ operators
...eem to avoid unsigned unless
bitwise operations are involved. That is, at least, what
Stroustrup recommends.)
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Fastest way to replace NAs in a large data.table
...place C function that updates NA by reference in the vector. That would at least halve the 20 seconds I think. Does such a function exist in any R package?
The reason f_andrie fails may be because it copies the whole of dt1, or creates a logical matrix as big as the whole of dt1, a few times. The o...
What is the point of the diamond operator () in Java 7?
... that it does matter to use the diamond operator instead of a raw type, at least when arguments with generic bounds are being passed in.
– Paul Bellora
Mar 17 '13 at 1:29
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