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Why do we need a pure virtual destructor in C++?
... will not be abstract. Therefore having the pure virtual destructor in the base class will not make any difference for the derived classes. It will only make the base class abstract (thanks for @kappa's comment).
One may also assume that every deriving class would probably need to have specific cle...
Calling method using JavaScript prototype
Is it possible to call the base method from a prototype method in JavaScript if it's been overridden?
14 Answers
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In Python, how do I indicate I'm overriding a method?
...
Based on this and fwc:s answer I created a pip installable package https://github.com/mkorpela/overrides
From time to time I end up here looking at this question.
Mainly this happens after (again) seeing the same bug in our ...
Rails extending ActiveRecord::Base
I've done some reading about how to extend ActiveRecord:Base class so my models would have some special methods. What is the easy way to extend it (step by step tutorial)?
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How to construct a relative path in Java from two absolute paths (or URLs)?
...necessary checks for you.
String path = "/var/data/stuff/xyz.dat";
String base = "/var/data";
String relative = new File(base).toURI().relativize(new File(path).toURI()).getPath();
// relative == "stuff/xyz.dat"
Please note that for file path there's java.nio.file.Path#relativize since Java 1.7, ...
How to call erase with a reverse iterator
...Apparently according to the standard [24.4.1/1] the relationship between i.base() and i is:
&*(reverse_iterator(i)) == &*(i - 1)
(from a Dr. Dobbs article):
So you need to apply an offset when getting the base(). Therefore the solution is:
m_CursorStack.erase( --(i.base()) );
EDIT
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What's is the difference between include and extend in use case diagram?
...w between use cases is a dependency relationship. I’ll use the terms ‘base’, ‘included’ and ‘extending’ to refer to the use case roles.
include
A base use case is dependent on the included use case(s); without it/them the base use case is incomplete as the included use case(s) repre...
Creating an instance using the class name and calling constructor
...ption {
// Get class name as string.
String myClassName = Base.class.getName();
// Create class of type Base.
Class<?> myClass = Class.forName(myClassName);
// Create constructor call with argument types.
Constructor<?> ctr = myClass.getCo...
Is there any particular difference between intval and casting to int - `(int) X`?
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intval() can be passed a base from which to convert. (int) cannot.
int intval( mixed $var [, int $base = 10 ] )
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Zero-based month numbering [closed]
...e of zero is also popular with pointer arithmetics where you would use one base pointer pointing at some allocated memory, plus a second pointer which would be at an offset from this base pointer. Here, using the value zero makes a lot of sense to point the offset to the base of the memory block. (G...