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How expensive is RTTI?
...ime if you can afford to do
if (typeid(a) == typeid(b)) {
B* ba = static_cast<B*>(&a);
etc;
}
instead of
B* ba = dynamic_cast<B*>(&a);
if (ba) {
etc;
}
The former involves only one comparison of std::type_info; the latter necessarily involves traversing an inheritanc...
Tutorials and libraries for OpenGL-ES games on Android [closed]
...arn opengl.
http://www3.ntu.edu.sg/home/ehchua/programming/android/Android_3D.html
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How to convert current date into string in java?
...d the answer right below for the timestring. C:
– php_coder_3809625
Jul 13 '16 at 13:54
@Ian Purton Is string date in ...
Limitations of SQL Server Express
...disuse.
Understanding SQL Express behavior: Idle time resource usage, AUTO_CLOSE and User Instances:
When SQL Express is idle it aggressively trims back the working memory set by writing the cached data back to disk and releasing the memory.
But this is easily worked around: Is there a way to...
OPTION (RECOMPILE) is Always Faster; Why?
...lding your statistics. This can be done by running the following:
EXEC sp_updatestats
And then recreating your execution plan. This will ensure that when your execution plan is created it will be using the latest information.
Adding OPTION(RECOMPILE) rebuilds the execution plan every time that...
WebKit issues with event.layerX and event.layerY
...agree with 1.7.1, warnings disappeared ! Thanks.
– Jk_
Dec 26 '11 at 10:14
3
I have disabled all ...
Hyphen, underscore, or camelCase as word delimiter in URIs?
...
Double-click this in Chrome: camelCase
Double-click this in Chrome: under_score
Double-click this in Chrome: hyphen-ated
See how Chrome (I hear Google makes a search engine too) only thinks one of those is two words?
camelCase and underscore also require the user to use the shift key, whereas ...
Using vagrant to run virtual machines with desktop environment
... to start the GUI: sudo vim /etc/X11/Xwrapper.config and edit it to allowed_users=anybody.
Next, install the VirtualBox guest tools before starting the GUI. This will give you a healthy screen resolution, integrated mouse, etc.
$ sudo apt-get install -y xfce4 virtualbox-guest-dkms virtualbox-guest-u...
Reset/remove CSS styles for element only
...g last. This should be the new accepted answer.
– JS_Riddler
Sep 17 '15 at 20:17
2
Microsoft lis...
How to show all privileges from a user in oracle?
...
You can try these below views.
SELECT * FROM USER_SYS_PRIVS;
SELECT * FROM USER_TAB_PRIVS;
SELECT * FROM USER_ROLE_PRIVS;
DBAs and other power users can find the privileges granted to other users with the DBA_ versions of these same views. They are covered in the docume...