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Why can't I initialize non-const static member or static array in class?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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std::function vs template
... the type and number of the registered callbacks is determined at run-time based on the state of your program and the application logic. Some of those callbacks could be functors, some could be plain functions, some could be the result of binding other functions to certain arguments.
std::function ...
Difference between initLoader and restartLoader in LoaderManager
...ls using a one-shot flag as Simon suggested)! This decision is made solely based on the "need" for a new loader. If we want to run the same query we use initLoader, if we want to run a different query we use restartLoader.
We could always use restartLoader but that would be inefficient. After a scr...
Transaction isolation levels relation with locks on table
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As brb tea says, depends on the database implementation and the algorithm they use: MVCC or Two Phase Locking.
CUBRID (open source RDBMS) explains the idea of this two algorithms:
Two-phase locking (2PL)
The first one is when the T2 transaction ...
Get operating system info
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Based on the answer by Fred-II I wanted to share my take on the getOS function, it avoids globals, merges both lists and detects the architecture (x32/x64)
/**
* @param $user_agent null
* @return string
*/
function getOS(...
What are the differences between NP, NP-Complete and NP-Hard?
...f of this is technical and requires use of the technical definition of NP (based on non-deterministic Turing machines). This is known as Cook's theorem.
What makes NP-complete problems important is that if a deterministic polynomial time algorithm can be found to solve one of them, every NP problem...
How do CDI and EJB compare? interact?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Cookie blocked/not saved in IFRAME in Internet Explorer
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base.OnActionExecuting(filterContext);
}
}
Example use:
[P3P]
public class HomeController : Controller
{
public ActionResult Index()
{
ViewData["Message"] = "Welcome!";
return View();
}
...
Android Fragments. Retaining an AsyncTask during screen rotation or configuration change
... a new instance is created, we use the FragmentManager to find the dialog (based on its tag) and do setTargetFragment(<the new MainFragment>). That's pretty much it.
There were two other things I needed to do: first cancel the task when the dialog is dismissed, and second set the dismiss mess...
What are the advantages of using nullptr?
...ng auto for return type
For example, suppose you encounter this in a code base:
auto result = findRecord( /* arguments */ );
if (result == 0) {
....
}
If you don’t happen to know (or can’t easily find out) what findRecord returns, it may not be clear whether result is a pointer type or an in...