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How to cast/convert pointer to reference in C++
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Call it like this:
foo(*ob);
Note that there is no casting going on here, as suggested in your question title. All we have done is de-referenced the pointer to the object which we then pass to the function.
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Why would anyone use set instead of unordered_set?
...ss memory than unordered_set to store the same number of elements.
For a small number of elements, lookups in a set might be faster than lookups in an unordered_set.
Even though many operations are faster in the average case for unordered_set, they are often guaranteed to have better worst case comp...
How to combine paths in Java?
...ubDirectory, "baz.txt");
If you want it back as a string later, you can call getPath(). Indeed, if you really wanted to mimic Path.Combine, you could just write something like:
public static String combine(String path1, String path2)
{
File file1 = new File(path1);
File file2 = new File(f...
Cannot hide status bar in iOS7
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in your apps plist file add a row call it "View controller-based status bar appearance" and set it to NO
Note that this simply does not work, if you are using UIImagePickerController in the app.
from http://www.openfl.org/developer/forums/general-discussion/...
Good tutorials on XMPP? [closed]
...Library from Ignite Realtime and used the groovy language with a buch of small scripts to learn the basics.
Later i developed a plugin for the OpenFire XMPP Server. There are some tutorials and a forum on their site as well. I think that both the smack and the openfire api's are easy to learn.
I...
Adding and removing style attribute from div with jquery
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You could do any of the following
Set each style property individually:
$("#voltaic_holder").css("position", "relative");
Set multiple style properties at once:
$("#voltaic_holder").css({"position":"relative", "top":"-75px"});
Remove a specific style:
$("#voltaic_holder").css({"top":...
How to append output to the end of a text file
...n add set -o noclobber to your .bashrc.
This ensures that if you accidentally type command > file_to_append_to to an existing file, it will alert you that the file exists already. Sample error message: file exists: testFile.txt
Thus, when you use > it will only allow you to create a new fil...
Can't access RabbitMQ web management interface after fresh install
I've installed the latest RabbitMQ server (rabbitmq-server-3.3.0-1.noarch.rpm) on a fresh Centos 5.10 VM according to the instructions on the official site.
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Return first match of Ruby regex
...]. This is an example output from irb:
irb(main):003:0> names = "erik kalle johan anders erik kalle johan anders"
=> "erik kalle johan anders erik kalle johan anders"
irb(main):004:0> names[/kalle/]
=> "kalle"
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is there an easy way to get the http status code in the failure block from AFHTTPClient?
...the operations queue the operationStatusCode will be -999.
You can check all other NSError codes and their descriptions in Apple's documentation
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