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back button callback in navigationController in iOS
...he previous view automatically. I want to do a few things when back button is pressed before popping the view off the stack. Which is the back button callback function?
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Can I run multiple programs in a Docker container?
...rap my head around Docker from the point of deploying an application which is intended to run on the users on desktop. My application is simply a flask web application and mongo database. Normally I would install both in a VM and, forward a host port to the guest web app. I'd like to give Docker a t...
How large should my recv buffer be when calling recv in the socket library
I have a few questions about the socket library in C. Here is a snippet of code I'll refer to in my questions.
6 Answers
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Identity increment is jumping in SQL Server database
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You are encountering this behaviour due to a performance improvement since SQL Server 2012.
It now by default uses a cache size of 1,000 when allocating IDENTITY values for an int column and restarting the service can "lose" unused values (The cac...
What does 'low in coupling and high in cohesion' mean
...w in coupling and high in cohesion . I have googled and read a lot about this, but still finding it hard to understand.
14 ...
Why are mutable structs “evil”?
Following the discussions here on SO I already read several times the remark that mutable structs are “evil” (like in the answer to this question ).
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How do I build a graphical user interface in C++? [closed]
... command line interface and the only other language I have experience with is PHP which doesn't support GUIs.
8 Answers
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Call by name vs call by value in Scala, clarification needed
...difference.
First, let's assume we have a function with a side-effect. This function prints something out and then returns an Int.
def something() = {
println("calling something")
1 // return value
}
Now we are going to define two function that accept Int arguments that are exactly the same...
Get size of folder or file
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java.io.File file = new java.io.File("myfile.txt");
file.length();
This returns the length of the file in bytes or 0 if the file does not exist. There is no built-in way to get the size of a folder, you are going to have to walk the directory tree recursively (using the listFiles() method of a...
Why have header files and .cpp files? [closed]
... from the implementation. The header declares "what" a class (or whatever is being implemented) will do, while the cpp file defines "how" it will perform those features.
This reduces dependencies so that code that uses the header doesn't necessarily need to know all the details of the implementati...