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What are rvalues, lvalues, xvalues, glvalues, and prvalues?
...of rvalue, i.e. they're the rvalues that aren't xvalues.
Glvalues are the union of xvalues and lvalues in one group, because they do share a lot of properties in common.
So really, it all comes down to xvalues and the need to restrict movement to exactly and only certain places. Those places are ...
How to work with complex numbers in C?
...introduced in mathematics, from the need of calculating negative quadratic roots. Complex number concept was taken by a variety of engineering fields.
Today that complex numbers are widely used in advanced engineering domains such as physics, electronics, mechanics, astronomy, etc...
Real and imag...
How do I parse XML in Python?
...ds on the API, which ElementTree defines.
First build an Element instance root from the XML, e.g. with the XML function, or by parsing a file with something like:
import xml.etree.ElementTree as ET
root = ET.parse('thefile.xml').getroot()
Or any of the many other ways shown at ElementTree. Then ...
How to dynamically change header based on AngularJS partial view?
...
I personally prefer to set the title on the $rootScope instead of creating an additional controller.
– DDA
Jul 18 '14 at 20:40
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How do I request a file but not save it with Wget? [closed]
... to make http requests to a fresh web server. I am doing this to warm the MySQL cache. I do not want to save the files after they are served.
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How to solve privileges issues when restore PostgreSQL Database
...sers but as stated in the comments this should not be used in production:
root@server:/var/log/postgresql# sudo -u postgres psql
psql (8.4.4)
Type "help" for help.
postgres=# \du
List of roles
Role name | Attributes | Member of
-----------------+-------------+-----------
&l...
examining history of deleted file
...ice: In that case, the ^ notation comes handy: it refers to the repository root, so you can say svn cat ^/local/file@REV (depending on the distance between the repository root and URL).
– musiphil
Sep 11 '13 at 22:49
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How to show disable HTML select option in by default?
I am new to HTML and PHP and want to achieve a drop-down menu from the mysql table and hard-coded too. I have multiple select in my page, One of them is
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How do I include a file over 2 directories back?
... those links if you move your file, is:
require_once($_SERVER['DOCUMENT_ROOT'] . 'directory/directory/file');
DOCUMENT_ROOT is a server variable that represents the base directory that your code is located within.
share...
What is the (best) way to manage permissions for Docker shared volumes?
... apply to a new data folder /data/newcontainer? I assume you run docker as root (is it possible not to do so?) Also, is there any difference in those permissions if the data is mounted directly in the main container or through a data-only container?
– Xabs
Nov ...