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Is 'switch' faster than 'if'?
...s that holds pointer to the labels in something like array structure. following example will help you understand how jump tables are laid out
00B14538 D8 09 AB 00 D8 09 AB 00 D8 09 AB 00 D8 09 AB 00 Ø.«.Ø.«.Ø.«.Ø.«.
00B14548 D8 09 AB 00 D8 09 AB 00 D8 09 AB 00 00 00 00 00 Ø.«.Ø.«.Ø...
Should I use SVN or Git? [closed]
...t your "central" git-repository on github, their own client – GitHub for Windows).
If you're looking on getting out of SVN, you might want to evaluate Bazaar for a bit. It's one of the next generation of version control systems that have this distributed element. It isn't POSIX dependant like git...
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...
What is Cache-Control: private?
...te proxy, then all 67198 users hitting the same page in the same 15-second window will all get the same contents - all served from close cache. Performance win for everyone.
The virtue of adding Cache-Control: max-age is that the browser doesn't even have to perform a conditional request.
if you ...
How does the const constructor actually work?
...
const is a nice performance win for Flutter widgets according to medium.com/@mehmetf_71205/inheriting-widgets-b7ac56dbbeb1 "Use const to build your widgets Without const, selective rebuilding of the sub-tree does not happen. Flutter creates a new insta...
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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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...
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...
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...
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...