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Iterator Loop vs index loop [duplicate]
I'm reviewing my knowledge on C++ and I've stumbled upon iterators. One thing I want to know is what makes them so special and I want to know why this:
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Does ruby have real multithreading?
I know about the "cooperative" threading of ruby using green threads . How can I create real "OS-level" threads in my application in order to make use of multiple cpu cores for processing?
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Extracting extension from filename in Python
Is there a function to extract the extension from a filename?
24 Answers
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Most underused data visualization [closed]
Histograms and scatterplots are great methods of visualizing data and the relationship between variables, but recently I have been wondering about what visualization techniques I am missing. What do you think is the most underused type of plot?
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“Private” (implementation) class in Python
I am coding a small Python module composed of two parts:
7 Answers
7
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UnicodeDecodeError: 'ascii' codec can't decode byte 0xe2 in position 13: ordinal not in range(128)
I'm using NLTK to perform kmeans clustering on my text file in which each line is considered as a document. So for example, my text file is something like this:
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How can I negate the return-value of a process?
I'm looking for a simple, but cross-platform negate -process that negates the value a process returns. It should map 0 to some value != 0 and any value != 0 to 0, i.e. the following command should return "yes, nonexistingpath doesn't exist":
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Creating an instance using the class name and calling constructor
Is there a way to create an instance of a particular class given the class name (dynamic) and pass parameters to its constructor.
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Converting an int to std::string
What is the shortest way, preferably inline-able, to convert an int to a string? Answers using stl and boost will be welcomed.
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