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Why should I declare a virtual destructor for an abstract class in C++?
I know it is a good practice to declare virtual destructors for base classes in C++, but is it always important to declare virtual destructors even for abstract classes that function as interfaces? Please provide some reasons and examples why.
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What does threadsafe mean?
... int tmp = myInt;
tmp = tmp + 1;
myInt = tmp;
return tmp;
}
Now thread A and thread B both would like to execute AddOne(). but A starts first and reads the value of myInt (0) into tmp. Now for some reason the scheduler decides to halt thread A and defer execution to thread B. Thread ...
Random data in Unit Tests?
... counter-evidence to refute that the program works according to the spec.
Now, you can write the unit tests by hand, but it really is a mechanical task. It can be automated. All you have to do is write the spec, and a machine can generate lots and lots of unit tests that try to break your code.
I ...
Scala Programming for Android
...er for mobile applications. Additionally, the IDE runs out of memory every now and then. I assume dex is not made for big libraries like the scala-library .
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How to get current time and date in Android
...an (but no longer should - see below!) use android.text.format.Time:
Time now = new Time();
now.setToNow();
From the reference linked above:
The Time class is a faster replacement
for the java.util.Calendar and
java.util.GregorianCalendar classes.
An instance of the Time class
represe...
How to sort my paws?
...ellent answer that helped me detect where a paw hit a pressure plate, but now I'm struggling to link these results to their corresponding paws:
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Do asynchronous operations in ASP.NET MVC use a thread from ThreadPool on .NET 4
... end of the request execution, the thread is returned to the thread pool.
Now let's take an example of the asynchronous pattern:
public void IndexAsync()
{
// perform some processing
}
public ActionResult IndexCompleted(object result)
{
return View();
}
When a request is sent to the Ind...
Send a pull request on GitHub for only latest commit
.... The pull request UI on github.com shows the last 9 commits and I don't know how to filter that down.
7 Answers
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How to Set AllowOverride all
I want to set the AllowOverride all But I don't know how to do it. I have found the following code by searching the google and pasted it in .htaccess :
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Is there a list of Pytz Timezones?
I would like to know what are all the possible values for the timezone argument in the Python library pytz. How to do it?
7...