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How do C++ class members get initialized if I don't do it explicitly?

Suppose I have a class with private memebers ptr , name , pname , rname , crname and age . What happens if I don't initialize them myself? Here is an example: ...
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Remove .php extension with .htaccess

Yes, I've read the Apache manual and searched here. For some reason I simply cannot get this to work. The closest I've come is having it remove the extension, but it points back to the root directory. I want this to just work in the directory that contains the .htaccess file. ...
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Fetch frame count with ffmpeg

Does anyone know how to fetch the number of total frames from a video file using ffmpeg? The render output of ffmpeg shows the current frame and I need the frame count to calculate the progress in percent. ...
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Algorithm to calculate the number of divisors of a given number

What would be the most optimal algorithm (performance-wise) to calculate the number of divisors of a given number? 27 Answe...
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Add up a column of numbers at the Unix shell

Given a list of files in files.txt , I can get a list of their sizes like this: 20 Answers ...
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Python - List of unique dictionaries

Let's say I got a list of dictionaries: 18 Answers 18 ...
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Sorting a vector of custom objects

...ut sorting a vector containing custom (i.e. user defined) objects. Probably, standard STL algorithm sort along with a predicate (a function or a function object) which would operate on one of the fields (as a key for sorting) in the custom object should be used. Am I on the right track? ...
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What does enumerate() mean?

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Python loop that also accesses previous and next values

How can I iterate over a list of objects, accessing the previous, current, and next items? Like this C/C++ code, in Python? ...
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How to validate an e-mail address in swift?

Does anyone know how to validate an e-mail address in Swift? I found this code: 34 Answers ...