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Why do we not have a virtual constructor in C++?
...
Hear it from the horse's mouth. :)
From Bjarne Stroustrup's C++ Style and Technique FAQ Why don't we have virtual constructors?
A virtual call is a mechanism to get work done given partial
information. In particular, "virtual"...
How to check that an element is in a std::set?
...his works with more containers but requires std::begin and std::end
// from C++0x, which you can get either:
// 1. By using a C++0x compiler or
// 2. Including the utility functions below.
return contains(std::begin(container), std::end(container), value);
// This works pre-C+...
java: HashMap not working
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Your last example doesn't work: Cannot cast from Map<String,Integer> to Map<Integer,String>
– T3rm1
Jun 24 '13 at 8:16
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Disable building workspace process in Eclipse
... still randomly decides to refresh the workspace, completely preventing me from doing anything in this gigantic codebase that I can't pare down in the time that I have to complete tasks for clients.
– Spencer Williams
Sep 26 '16 at 18:40
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Service Temporarily Unavailable Magento?
... I've faced the same problem after unsuccessful install of a module from magento connect. Deleting the file worked.
– Mohammad Faisal
Jul 19 '14 at 5:38
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Collection versus List what should you use on your interfaces?
...mbiguity. Collection<T> and ReadOnlyCollection<T> both derive from ICollection<T> (i.e. there is no IReadOnlyCollection<T>). If you return the interface, it's not obvious which one it is and whether it can be modified. Anyway, thanks for your input. This was a good sanity...
How to initialise memory with new operator in C++?
...(int i = 0; i < 10; i++)
{
p[i] = 0;
}
Using std::memset function from <cstring>
int* p = new int[10];
std::memset(p, 0, sizeof(int) * 10);
Using std::fill_n algorithm from <algorithm>
int* p = new int[10];
std::fill_n(p, 10, 0);
Using std::vector container
std::vector<...
Timer function to provide time in nano seconds using C++
... result in these routines returning
different values as the thread moves from one processor to another...
However this StackOverflow answer https://stackoverflow.com/a/4588605/34329 states that QPC should work fine on any MS OS after Win XP service pack 2.
This article shows that Windows 7 can ...
How do I determine height and scrolling position of window in jQuery?
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From jQuery Docs:
const height = $(window).height();
const scrollTop = $(window).scrollTop();
http://api.jquery.com/scrollTop/
http://api.jquery.com/height/
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Is there a standard sign function (signum, sgn) in C/C++?
... ints, floats, doubles, unsigned shorts, or any custom types constructible from integer 0 and orderable.
Fast! copysign is slow, especially if you need to promote and then narrow again. This is branchless and optimizes excellently
Standards-compliant! The bitshift hack is neat, but only works for so...