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How to implement classic sorting algorithms in modern C++?
The std::sort algorithm (and its cousins std::partial_sort and std::nth_element ) from the C++ Standard Library is in most implementations a complicated and hybrid amalgamation of more elementary sorting algorithms , such as selection sort, insertion sort, quick sort, merge sort, or heap sort....
PyPy — How can it possibly beat CPython?
...w is this possible?
Manual memory management (which is what CPython does with its counting) can be slower than automatic management in some cases.
Limitations in the implementation of the CPython interpreter preclude certain optimisations that PyPy can do (eg. fine grained locks).
As Marcelo men...
What is href=“#” and why is it used?
On many websites I see links that have href="#" . What does it mean? What is it used for?
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What is the difference between a definition and a declaration?
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A declaration introduces an identifier and describes its type, be it a type, object, or function. A declaration is what the compiler needs to accept references to that identifier. These are declarations:
extern int bar;
extern int g(int, int);
double f(int, double); // extern...
What is Lazy Loading?
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It's called lazy loading because, like a lazy person, you are putting off doing something you don't want to. The opposite is Eager Loading, where you load something right away, long before you need it.
If you are curious wh...
Is it better to reuse a StringBuilder in a loop?
...uilder.
In a very long loop I'm manipulating a StringBuilder and passing it to another method like this:
14 Answers
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Simulator or Emulator? What is the difference?
...ece of software that mimics existing hardware/software, what should I call it? A simulator or an emulator?
21 Answers
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How do I pass a unique_ptr argument to a constructor or a function?
... parameters in constructors or functions. Consider this class referencing itself:
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Is null an Object?
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If null were an Object, it would support the methods of java.lang.Object such as equals(). However, this is not the case - any method invocation on a null results in a NullPointerException.
And this is what the Java Language Specification has to sa...
Can you have multiline HTML5 placeholder text in a ?
...lue is the empty string and the control is not focused (e.g. by displaying it inside a blank unfocused control). All U+000D CARRIAGE RETURN U+000A LINE FEED character pairs (CRLF) in the hint, as well as all other U+000D CARRIAGE RETURN (CR) and U+000A LINE FEED (LF) characters in the hint, must be ...