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Difference between this and self in JavaScript
...e inner function is not called until invoked by yourObject. So this.foo is now yourObject.foo but self still resolves to the variable in the enclosing scope which, at the time the inner function object was returned, was (and in the resulting closure still is) myObject. So, within the inner function,...
Java equivalent of unsigned long long?
... 64 bit unsigned integer, via unsigned long long int , or via uint64_t . Now, in Java longs are 64 bits, I know. However, they are signed.
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Tricks to manage the available memory in an R session
...function(x) class(x)[1]) since class always return a vector of characters now (base-3.5.0).
– DeltaIV
Jun 14 '18 at 15:28
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What's the role of GetHashCode in the IEqualityComparer in .NET?
...r.GetHashCode methods are used instead of the methods on the Key objects.
Now to explain why both methods are necessary, consider this example:
BoxEqualityComparer boxEqC = new BoxEqualityComparer();
Dictionary<Box, String> boxes = new Dictionary<Box, string>(boxEqC);
Box redBox = ...
How to sparsely checkout only one single file from a git repository?
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btw we can use git archive now.
– Jared Forsyth
Sep 10 '13 at 7:14
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std::string formatting like sprintf
...d::vector, so accessing its storage via a pointer was undefined behaviour. Now it'd work, but I see no benefit in doing it that way.
– iFreilicht
Apr 25 '15 at 9:48
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How to override equals method in Java
... have a class People which basically has 2 data fields name and age . Now I want to override equals method so that I can check between 2 People objects.
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What's the difference between => , ()=>, and Unit=>
... value (I'm simulating the setTimeout function in JavaScript, if you must know.)
4 Answers
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Will the Garbage Collector call IDisposable.Dispose for me?
...urvive a garbage collection. This can be bad. Why?
As you may or may not know, the GC is split into generations - Gen 0, 1 and 2, plus the Large Object Heap. Split is a loose term - you get one block of memory, but there are pointers of where the Gen 0 objects start and end.
The thought process i...
How do I detect unsigned integer multiply overflow?
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I see you're using unsigned integers. By definition, in C (I don't know about C++), unsigned arithmetic does not overflow ... so, at least for C, your point is moot :)
With signed integers, once there has been overflow, undefined behaviour (UB) has occurred and your program can do anything (...