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What are copy elision and return value optimization?
...If you want to avoid possible copy elision, use -fno-elide-constructors.
Now almost all compilers provide copy elision when optimisation is enabled (and if no other option is set to disable it).
Conclusion
With each copy elision, one construction and one matching destruction of the copy are om...
Why does Unicorn need to be deployed together with Nginx?
I would like to know the difference between Nginx and Unicorn. As far as I understand, Nginx is a web server while Unicorn is a Ruby HTTP server.
...
Change first commit of project with Git? [duplicate]
...anced the option --root for git rebase:
"git rebase [-i] --root $tip" can now be used to rewrite all the history leading to "$tip" down to the root commit.
That new behavior was initially discussed here:
I personally think "git rebase -i --root" should be made to just work without requiring "-...
Is it possible to disable the network in iOS Simulator?
... Not sure if it's in response to this radar bug, but the Developer Tools now include a Network Link Conditioner tool.
– samvermette
Apr 5 '12 at 18:12
7
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Should I return a Collection or a Stream?
...t not process the whole result.) This is a very common case.
Even if you know that the user will iterate it multiple times or otherwise keep it around, you still may want to return a Stream instead, for the simple fact that whatever Collection you choose to put it in (e.g., ArrayList) may not be th...
How to correctly implement custom iterators and const_iterators?
...rs, we derive from the standard iterator categories to let STL algorithms know the type of iterator we've made.
In this example, I define a random access iterator and a reverse random access iterator:
//-------------------------------------------------------------------
// Raw iterator with rando...
What are the differences between delegates and events?
...tion), but it can only be risen from inside the class defining it. Let me know if I'm not clear.
– faby
Aug 28 '14 at 7:38
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How Do I Convert an Integer to a String in Excel VBA?
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@MarkCh I know this is old, but... perhaps because VBA's obnoxious implicit conversions and default member calls are what makes so much VBA code frail, surprising and bug-prone? There wouldn't be half as many VBA questions on SO if it w...
Representing and solving a maze given an image
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@Whymarrh Well, for "Just this image" you now actually have an answer. Do you have any specific questions? Items 1-4 from my list are the manual processing I was asking about. Item 5 is a BFS - the very basic algorithm for graphs, but it can be applied to image direc...
Any difference between First Class Function and High Order Function
...pass a function as an argument to another function. The latter function is now "higher order". It is a function that takes a function as an argument.
The canonical example is "map"
map :: (a -> b) -> [a] -> [b]
map f [] = []
map f (x:xs) = f x : map f xs
That is, it takes a function...