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g++ undefined reference to typeinfo

...r, i.e. by using a fully-qualified name. In this case the linker will look for the body, and you will have to define the function. And yes, you can define a body for a pure virtual function. – AnT Jun 25 '10 at 0:41 ...
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How do I format a string using a dictionary in python-3.x?

I am a big fan of using dictionaries to format strings. It helps me read the string format I am using as well as let me take advantage of existing dictionaries. For example: ...
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Rounding up to next power of 2

... want to write a function that returns the nearest next power of 2 number. For example if my input is 789, the output should be 1024. Is there any way of achieving this without using any loops but just using some bitwise operators? ...
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Remove secure warnings (_CRT_SECURE_NO_WARNINGS) from projects by default in Visual Studio

Is there a way to set by default for all projects removing the precompiler secure warnings that come up when using functions like scanf(). I found that you can do it by adding a line in the project option or a #define _CRT_SECURE_NO_WARNINGS in the beginning of the code. ...
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Replacing spaces with underscores in JavaScript?

I'm trying to use this code to replace spaces with _, it works for the first space in the string but all the other instances of spaces remain unchanged. Anybody know why? ...
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Using $_POST to get select option value from HTML

...OST['taskOption'];. Make sure to check if it exists in the $_POST array before proceeding though. <form method="post" action="process.php"> <select name="taskOption"> <option value="first">First</option> <option value="second">Second</option> <o...
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UIBarButtonItem with custom image and no border

...BarButtonItem with a button as custom view directly. P.P.S. You also need [forward release] in your code. share | improve this answer | follow | ...
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How do I capture SIGINT in Python?

...rocesses in a pipeline, so the shell may close STDOUT (now "output.log") before program.py finishes printing the final log. Python will complain, "close failed in file object destructor: Error in sys.excepthook:". – Noah Spurrier Jul 3 '11 at 22:07 ...
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MAMP Pro 3.05 on Mavericks updated to Yosemite - Apache does not start

... MAMP Folks just posted the workaround Workaround for the 10.10 Preview 5 bug: Rename the file “envvars” located in /Applications/MAMP/Library/bin into “_envvars” Test Update: It works! Works for Yosemite release too! ...
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How to get the CPU Usage in C#?

I want to get the overall total CPU usage for an application in C#. I've found many ways to dig into the properties of processes, but I only want the CPU usage of the processes, and the total CPU like you get in the TaskManager. ...