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push_back vs emplace_back
...o, so I asked the same question on the Visual C++ blog. Here is the answer from Stephan T Lavavej, the official maintainer of the Visual C++ standard library implementation at Microsoft.
Q: Are beta 2 emplace functions just some kind of placeholder right now?
A: As you may know, variadic te...
Change font color for comments in vim
...kground setting:
set background=dark
would change the color of comments from dark blue to light blue, when using the default colorscheme.
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How to let PHP to create subdomain automatically for each user?
...but there are thousands of tutorials out there. Here is the necessary code from that tutorial:
<VirtualHost 111.22.33.55>
DocumentRoot /www/subdomain
ServerName www.domain.tld
ServerAlias *.domain.tld
</VirtualHost>
However as it required the use of VirtualHosts it must be...
How do I shuffle an array in Swift?
...
let x = [1, 2, 3].shuffled()
// x == [2, 3, 1]
let fiveStrings = stride(from: 0, through: 100, by: 5).map(String.init).shuffled()
// fiveStrings == ["20", "45", "70", "30", ...]
var numbers = [1, 2, 3, 4]
numbers.shuffle()
// numbers == [3, 2, 1, 4]
Swift 4.0 and 4.1
These extensions add a sh...
Linux: compute a single hash for a given folder & contents?
...ns "bar was here". With your method, we would not be able to separate that from two files C and D, where C contains "foobar" and D contains " was here". By hashing each file individually and then hash all "filename hash" pairs, we can see the difference.
– Vatine
...
Using Linq to get the last N elements of a collection?
...
I like it in addition to the accepted answer from kbrimington. If you do not care about the order after you have the last N records you can skip the second Reverse.
– ZoolWay
Apr 29 '14 at 10:35
...
Spring classpath prefix difference
.... syntax is useful primarily when you want to build an application context from multiple bean definition files, using wildcard syntax.
For example, if you construct your context using classpath*:appContext.xml, the classpath will be scanned for every resource called appContext.xml in the classpath,...
What's the difference between integer class and numeric class in R
...s are whole numbers. For example, 1:5 creates an integer vector of numbers from 1 to 5. You don't need to append the letter L.
> class(1:5)
[1] "integer"
Reference: https://www.quora.com/What-is-the-difference-between-numeric-and-integer-in-R
...
How to wait for a number of threads to complete?
...t problem, but it's nice to get more Information about the running threads from one Object (like the ExecutorService). I think it's nice to use given features to solve a problem; maybe you'll need more flexibility (thread information) in the future. It's also right to mention the old buggy class...
What is the actual use of Class.forName(“oracle.jdbc.driver.OracleDriver”) while connecting to a dat
...iver.
It doesn't "do" anything in terms of connecting to a database, aside from ensure that the specified class is loaded by the current classloader. There is no fundamental difference between writing
Class<?> driverClass = Class.forName("oracle.jdbc.driver.OracleDriver");
// and
Class<?>...