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Polymorphism vs Overriding vs Overloading
... }
You could also have a method that is
overloaded with two or more sets of arguments. The method does
different things based on the
type(s) of argument(s) passed.
class Server {
public void pour (Coffee liquid) {
new Cup().fillToTopWith(liquid);
}
...
Detect if an input has text in it using CSS — on a page I am visiting and do not control?
... CSS selectors refer to markup or, in some cases, to element properties as set with scripting (client-side JavaScript), rather than user actions. For example, :empty matches element with empty content in markup; all input elements are unavoidably empty in this sense. The selector [value=""] tests wh...
What is stability in sorting algorithms and why is it important?
...nd/or memory usage than unstable algorithms. So when you have a large data set, you have to pick between beating up the CPU or the memory. If you're constrained on both CPU and memory, you have a problem. A good compromise stable algorithm is a binary tree sort; the Wikipedia article has a pathetica...
What is the difference between the | and || or operators?
I have always used || (two pipes) in OR expressions, both in C# and PHP. Occasionally I see a single pipe used: | . What is the difference between those two usages? Are there any caveats when using one over the other or are they interchangeable?
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How to rethrow InnerException without losing stack trace in C#?
I am calling, through reflection, a method which may cause an exception. How can I pass the exception to my caller without the wrapper reflection puts around it?
I am rethrowing the InnerException, but this destroys the stack trace.
Example code:
...
Why is XOR the default way to combine hashes?
Say you have two hashes H(A) and H(B) and you want to combine them. I've read that a good way to combine two hashes is to XOR them, e.g. XOR( H(A), H(B) ) .
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How can you iterate over the elements of an std::tuple?
How can I iterate over a tuple (using C++11)? I tried the following:
20 Answers
20
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Swift double to string
Before I updated xCode 6, I had no problems casting a double to a string but now it gives me an error
14 Answers
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Difference between private, public, and protected inheritance
All of the questions I've found on SO deal with specific cases.
16 Answers
16
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How do the likely/unlikely macros in the Linux kernel work and what is their benefit?
I've been digging through some parts of the Linux kernel, and found calls like this:
10 Answers
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