I saw this in some code here on StackOverflow and I couldn't figure out what it does. Then I saw some confused answers on other forums. My best guess is that it's used in C to hide the constant foo from other modules. Is this correct? If so, why would anyone use it in a C++ context where you can j...

... A list keeps order, dict and set don't: when you care about order, therefore, you must use list (if your choice of containers is limited to these three, of course;-). dict associates with each key a value, while list and set just contain values: ver...

What is the basic difference between the Factory and Abstract Factory Patterns? 19 Answers ...

... a web service. I know how to use HTTPURLConnection but I want to understand how it works. Basically, I want to know the following: ...

...in String pool, otherwise a new string object will be added in String pool and the reference of this String is returned. 1...

Array.Copy and Buffer.BlockCopy both do the same thing, but BlockCopy is aimed at fast byte-level primitive array copying, whereas Copy is the general-purpose implementation. My question is - under what circumstances should you use BlockCopy ? Should you use it at any time when you are copyi...

I've been profiling some of our core math on an Intel Core Duo, and while looking at various approaches to square root I've noticed something odd: using the SSE scalar operations, it is faster to take a reciprocal square root and multiply it to get the sqrt, than it is to use the native sqrt opcode!...

...orld projects I wonder if anyone knows how these two complement each other and how much their functionalities overlap? 9 An...

I understand the syntax and general semantics of pointers versus references, but how should I decide when it is more-or-less appropriate to use references or pointers in an API? ...

...tion, what is the exact difference between the modes w , a , w+ , a+ , and r+ ? 6 Answers ...