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Is using Random and OrderBy a good shuffle algorithm?
...dex];
elements[swapIndex] = elements[i];
}
}
This will now only do as much work as it needs to.
Note that in both cases, you need to be careful about the instance of Random you use as:
Creating two instances of Random at roughly the same time will yield the same sequence of ra...
Why can't I use the 'await' operator within the body of a lock statement?
...lock(), that in a synchronous world would execute on separate threads. But now with await (if allowed I mean) you could have two tasks executing within the lock block because the thread was reused. Hilarity ensues. Or did I misunderstand something?
– Gareth Wilson
...
Return array in a function
...his example also modifies the parameter list by adding the const keyword. Now you get a reference without copying it, but you can't modify it, so the caller knows it'll be the same as before the function got to it.
All of this is swell, but idiomatic c++ rarely works with collections as a whole....
How do I start Mongo DB from Windows?
...on localhost:27017
Your MongoDB is started and connected with RoboMongo (now Robo 3T) - a third party GUI tool
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How to create a fixed-size array of objects
...
The best you are going to be able to do for now is create an array with an initial count repeating nil:
var sprites = [SKSpriteNode?](count: 64, repeatedValue: nil)
You can then fill in whatever values you want.
In Swift 3.0 :
var sprites = [SKSpriteNode?](repea...
IEnumerable vs List - What to Use? How do they work?
...ample
where a.race.Family == "Canidae"
select a;
}
Now you have a method that selects an initial sample ("AllSpotted"), plus some filters. So now you can do this:
var Leopards = Feline(AllSpotted());
var Hyenas = Canine(AllSpotted());
So is it faster to use List over IEnum...
Are PHP short tags acceptable to use?
...ags, you'll still need to use <?php echo ... ?>.
Also, you need to know that ASP tags <% , %> , <%= , and script tag are removed from PHP 7. So if you would like to support long-term portable code and would like switching to the most modern tools consider changing that parts of code...
Running a specific test case in Django when your app has a tests directory
...t notation for the element you want to run.
Automatic test discovery will now find tests in any file that starts with test under the working directory, so addressing the question you would have to rename your files, but you can now keep them inside the directory you want. If you want to use custom ...
What is the difference between self-types and trait subclasses?
...and Scala", you'll get many links, including presentations and videos. For now, here is a link to another question.
Now, as to what is the difference between a self type and extending a trait, that is simple. If you say B extends A, then B is an A. When you use self-types, B requires an A. There ar...
Is there a performance difference between i++ and ++i in C++?
...ent translation units. Compiler with g++ 4.5.
Ignore the style issues for now
// a.cc
#include <ctime>
#include <array>
class Something {
public:
Something& operator++();
Something operator++(int);
private:
std::array<int,PACKET_SIZE> data;
};
int main () {
S...