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Pure virtual destructor in C++
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And since this got a down vote, I should clarify: If you derive anything from A and then try to delete or destroy it, A's destructor will eventually be called. Since it is pure and doesn't have an implementation, undefined behavior will ensue. On one popular platform, that will invoke the purecall...
IIS7 Settings File Locations
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Also check this answer from here: Cannot manually edit applicationhost.config
The answer is simple, if not that obvious: win2008 is 64bit, notepad++
is 32bit. When you navigate to Windows\System32\inetsrv\config using
explorer you are using...
Can we append to a {% block %} rather than overwrite?
... before they are included. This means that a template that includes blocks from another will contain blocks that have already been evaluated and rendered - not blocks that can be overridden by, for example, an extending template.
In that case I'd recommend using django-sekizai, wich allow you to do...
Catching multiple exception types in one catch block
...om/php-catch-multiple-exception-types. Content of the post copied directly from the article:
Example exceptions
Here's some example exceptions that have been defined for the purposes of this example:
class FooException extends Exception
{
public function __construct($message = null, $code = 0)...
Ruby Hash to array of values
... Exactly what I was looking for when trying to create an array from a hash using it's keys as values. Thanks :)
– Fabian Leutgeb
Mar 5 '16 at 18:15
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Creating a new user and password with Ansible
...ython one-liner you have above. I had some trouble getting correct output from Python, probably due to my own incompetence and the openssl command worked better.
– Brendan Wood
Dec 12 '13 at 21:17
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Regular expression \p{L} and \p{N}
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Apart from the fact that capturing parentheses were used, the REs will actually compile to the same thing (well, in any optimizing RE engine that supports the \p{…} escape sequence style in the first place).
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How to check if a service is running on Android?
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I use the following from inside an activity:
private boolean isMyServiceRunning(Class<?> serviceClass) {
ActivityManager manager = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
for (RunningServiceInfo service : man...
Spring MVC @PathVariable getting truncated
...his in a long time, but I think the colon separates the regular expression from the argument name to bind it to.
– earldouglas
Nov 2 '12 at 18:18
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Difference between as.POSIXct/as.POSIXlt and strptime for converting character vectors to POSIXct/PO
...in the case of character, it runs strptime first, then does the conversion from POSIXlt to POSIXct.
It makes sense that strptime is faster, because strptime only handles character input whilst the others try to determine which method to use from input type. It should also be a bit safer in that bei...