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Is returning by rvalue reference more efficient?
...rn Beta_ab(1, 1);
}
Now, it's properly moving a temporary Beta_ab object into the return value of the function. If the compiler can, it will avoid the move altogether, by using RVO (return value optimization). Now, you can do the following
Beta_ab ab = others.toAB();
And it will move construct ...
Best way to define private methods for a class in Objective-C
...one OS 2.0, and later) you can create a category with an empty name (i.e. @interface MyClass ()) called Class Extension. What's unique about a class extension is that the method implementations must go in the same @implementation MyClass as the public methods. So I structure my classes like this:
I...
How do I break out of a loop in Perl?
... $thing; while ($thing = shift @array){ last if $thing =~ /[A-Za-z]/; } print($thing); # "apple"
– HoldOffHunger
Jul 17 '18 at 19:06
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How do you remove a Cookie in a Java Servlet
...domain, you'll still see the cookie sent to the client.
To debug this, go into Firefox's preferences -> Security tab, and search for all cookies with the SSO_COOKIE_NAME. Click on each to see the domain and path. I'm betting you'll find one in there that's not quite what you're expecting.
...
mongodb count num of distinct values per field/key
... Richie said is that if the grouping is done just "regular" field (string, int etc.) then you don't need the unwind step. Isn't it correct?
– guyarad
Oct 19 '17 at 10:00
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Moving average or running mean
... another answer as there were so many but you might just copy and paste it into your IDE.
– Chaoste
Jan 28 '19 at 12:56
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Why java classes do not inherit annotations from implemented interfaces?
I've been using Guice's AOP to intercept some method calls. My class implements an interface and I would like to annotate the interface methods so Guice could select the right methods. Even if the annotation type is annotated with Inherited annotation implementing class doesn't inherit the annotat...
support FragmentPagerAdapter holds reference to old fragments
...
You are running into a problem because you are instantiating and keeping references to your fragments outside of PagerAdapter.getItem, and are trying to use those references independently of the ViewPager. As Seraph says, you do have guarant...
Best way in asp.net to force https for an entire site?
... which includes details on why only using redirects can reduce security. Hint: it can leave you vulnerable to the SSL Strip tool, among other things. troyhunt.com/2011/11/…
– Oran Dennison
May 3 '13 at 20:00
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Why aren't Java Collections remove methods generic?
... type of the collection as parameter type.
The example given by him is an intersection of a List of Numbers and a
List of Longs.
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