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Qt events and signal/slots
...he event loop. Each GUI program needs an event loop, whatever you write it Windows or Linux, using Qt, Win32 or any other GUI library. As well each thread has its own event loop. In Qt "GUI Event Loop" (which is the main loop of all Qt applications) is hidden, but you start it calling:
QApplication...
Non-Relational Database Design [closed]
...HTML. (HUGE!!)
For normal webapps, document/JSON-based DBs are a massive win, and the drawbacks of less flexible queries and some extra code for data validation seems a small price to pay.
Have you hit your head against anything that seems impossible?
Not yet. Map/reduce as a means of querying a...
Why do 64-bit DLLs go to System32 and 32-bit DLLs to SysWoW64 on 64-bit Windows?
...n't intended for the dlls of 64-bit systems, it's actually something like "Windows on Windows64", meaning the bits you need to run 32bit apps on a 64bit windows.
This article explains a bit:
"Windows x64 has a directory System32 that contains 64-bit DLLs (sic!). Thus native processes with a bitne...
Is there any advantage of using map over unordered_map in case of trivial keys?
...rdered_map vs. map (or vector vs list) , the default process heap (talking Windows here) is serialized. Allocating (small) blocks in large quantities in a multithreaded application is very expensive.
– ROAR
Feb 4 '10 at 3:06
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Is R's apply family more than syntactic sugar?
...ething like PVM or MPI (see Tierney's clustering page). snow has the following apply functions:
parLapply(cl, x, fun, ...)
parSapply(cl, X, FUN, ..., simplify = TRUE, USE.NAMES = TRUE)
parApply(cl, X, MARGIN, FUN, ...)
parRapply(cl, x, fun, ...)
parCapply(cl, x, fun, ...)
It makes sense that app...
What is the difference between NTFS Junction Points and Symbolic Links?
...f you're certain that that's the case in a specific environment (maybe for Windows XP or because of security settings) I'll make note of that but in my experience and from documentation (and I just confirmed on Windows 10) a junction can always target a non-existent path, even upon creation... there...
C++ IDE for Linux? [closed]
... You also use tmux (previously also screen) to multiplex (= think multiple windows/tabs/panels) and persist your terminal session.
The point is that, thanks to the shell and a few tool writing conventions, these all integrate with each other. And that way the Linux shell is a truly integrated devel...
PDO MySQL: Use PDO::ATTR_EMULATE_PREPARES or not?
...h they are cached. In my experience the query cache isn't often a very big win anyway. Queries and schemas need special construction to make maximum use of the cache. Often application-level caching ends up being necessary anyway in the long run.
Native prepares doesn't make any difference for secur...
How to apply multiple styles in WPF
.... I also have a separate style which I would like to add to it without blowing away the first one. The styles have different TargetTypes, so I can't just extend one with the other.
...
Why always ./configure; make; make install; as 3 separate steps?
...
But why not just let people do it themselves? Is this really such a big win?
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