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C++ equivalent of java's instanceof
...ehaviour for the class you are checking for into a virtual function on the base class or perhaps introducing something like a visitor where you can introduce specific behaviour for subclasses without changing the interface (except for adding the visitor acceptance interface of course).
As pointed o...
How do I check OS with a preprocessor directive?
I need my code to do different things based on the operating system on which it gets compiled. I'm looking for something like this:
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Debugging WebSocket in Google Chrome
...e. Here are the steps to test it quickly:
Navigate to the WebSocket Echo demo, hosted on the websocket.org site.
Turn on the Chrome Developer Tools.
Click Network, and to filter the traffic shown by the Dev Tools, click WebSockets.
In the Echo demo, click Connect. On the Headers tab in Google Dev ...
What is the theoretical maximum number of open TCP connections that a modern Linux box can have
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Base64 encoding in SQL Server 2005 T-SQL
I'd like to write a T-SQL query where I encode a string as a Base64 string. Surprisingly, I can't find any native T-SQL functions for doing Base64 encoding. Does a native function exist? If not, what's the best way to do Base64 encoding in T-SQL?
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Overcoming “Display forbidden by X-Frame-Options”
...just client-side JavaScript and my X-Frame-Bypass Web Component. Here is a demo: Hacker News in an X-Frame-Bypass. (Tested in Chrome & Firefox.)
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How to list the contents of a package using YUM?
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@dimadima: The question was for yum (= RHEL based systems) which uses rpm as native packet manager (Red Hat Packet Manager). If the OP would be on a debian/ubuntu/.. system, dpkg would be the way to go, since it is the backend to apt.
– Levite
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The input is not a valid Base-64 string as it contains a non-base 64 character
... another console application after converting it to Byte array and then to Base64 string. This part works, but when the same stream is received at the application, it gets manipulated and is no longer a valid Base64 string. Some junk characters are getting introduced into the stream.
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Why doesn't the height of a container element increase if it contains floated elements?
...ight has been set, a block level element such as a div will set its height based on its content. The bottom of the parent div will extend beyond the last element. Unfortunately, floating an element stops the parent from taking the floated element into account when determining its height. This mea...
Facebook Android Generate Key Hash
...in openssl bin folder
13) Again copy following code and paste
openssl base64 -in debug_sha.txt > debug_base64.txt
14) you will get debug_base64.txt in openssl bin folder
15) open debug_base64.txt file Here is your Key hash.
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