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Friend declaration in C++ - difference between public and private
... there's no difference - you just tell that class B is a friend of class A and now can access its private and protected members, that's all.
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LINQ Aggregate algorithm explained
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The easiest-to-understand definition of Aggregate is that it performs an operation on each element of the list taking into account the operations that have gone before. That is to say it performs the action on the first and second element and carr...
How to pull specific directory with git
I have a project with git, and I just want to clone or pull a specific directory, like myproject/javascript just like subversion does.
make some changes, commit and push back again.
It's possible?
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How to normalize a NumPy array to within a certain range?
...io /= np.max(np.abs(audio),axis=0)
image *= (255.0/image.max())
Using /= and *= allows you to eliminate an intermediate temporary array, thus saving some memory. Multiplication is less expensive than division, so
image *= 255.0/image.max() # Uses 1 division and image.size multiplications
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Can iterators be reset in Python?
Can I reset an iterator / generator in Python? I am using DictReader and would like to reset it to the beginning of the file.
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When is assembly faster than C?
...actually be used to generate more performant code are both extremely rare and require expert knowledge of and experience with assembly.
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How to stop mongo DB in one command
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Starting and Stopping MongoDB is covered in the MongoDB manual. It explains the various options of stopping MongoDB through the shell, cli, drivers etc. It also details the risks of incorrectly stopping MongoDB (such as data corruptio...
How to get number of rows using SqlDataReader in C#
...defined except for one that states to do a while loop with Read() method and increment a counter.
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Storing Python dictionaries
I'm used to bringing data in and out of Python using CSV files, but there are obvious challenges to this. Are there simple ways to store a dictionary (or sets of dictionaries) in a JSON or pickle file?
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Reuse Cucumber steps
...de in like so: steps %Q{Given I am logged in}
– BrendanDean
Aug 9 '11 at 18:42
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