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Difference between a virtual function and a pure virtual function [duplicate]
...ment all inherited pure virtual functions. If they do not, they too will become abstract.
An interesting 'feature' of C++ is that a class can define a pure virtual function that has an implementation.
(What that's good for is debatable.)
Note that C++11 brought a new use for the delete and defa...
How can I convert comma separated string into a List
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Regular expression for exact match of a string
...ll cause many people serious problems. E.g., using your approach \bhttp://www.foo.com\b will match http://www.bar.com/?http://www.foo.com, which is most definitely not an exact match, as requested in the OP. This will cause serious problems for people working with URLs or passwords (which, again, i...
CSS “and” and “or”
..."].class1
{
/* foo */
}
|| works by separating multiple selectors with commas like-so:
<div class="class1"></div>
<div class="class2"></div>
div.class1,
div.class2
{
/* foo */
}
share
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Array initialization syntax when not in a declaration
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How to access the local Django webserver from outside world
... e.g. 8000 to your server.
Check your firewall on your server whether incoming connections to the port in use are allowed!
Assuming you can access your Apache server from the outside successfully, you can also try this:
Stop the Apache server, so that port 80 is free.
Start the development ser...
How to check if command line tools is installed
...so the xcodebuild and xcode-select files in /usr/bin
I need to know if the command line tools is installed.
Is there a command for it?
What can I do to see if XCode CLT is installed and if yes to find the version installed?
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Quick way to list all files in Amazon S3 bucket?
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I'd recommend using boto. Then it's a quick couple of lines of python:
from boto.s3.connection import S3Connection
conn = S3Connection('access-key','secret-access-key')
bucket = conn.get_bucket('bucket')
for key in bucket.list():...
How to change the height of a ?
...: block;
margin: 10px 0;
}
The solution is probably not cross-browser compatible, but it's something at least. Also consider setting line-height:
line-height:22px;
For Google Chrome, consider setting content:
content: " ";
Other than that, I think you're stuck with a JavaScript solution.
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MySQL show status - active or total connections?
...----+-------+
1 row in set (0.00 sec)
... or through the show processlist command:
mysql> show processlist;
+----+------+-----------------+--------+---------+------+-------+------------------+
| Id | User | Host | db | Command | Time | State | Info |
+----+------+-----...