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Why can't I forward-declare a class in a namespace using double colons?
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Because you can't. In C++ language fully-qualified names are only used to refer to existing (i.e. previously declared) entities. They can't be used to introduce new entities.
And you are in fact "reopening" the namespace to declare new entities. If the class ...
How to compute the similarity between two text documents?
...n an NLP project, in any programming language (though Python will be my preference).
10 Answers
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What are C++ functors and their uses?
I keep hearing a lot about functors in C++. Can someone give me an overview as to what they are and in what cases they would be useful?
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Send string to stdin
Is there a way to effectively do this in bash:
6 Answers
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git: Apply changes introduced by commit in one repo to another repo
...po2 on local machine. They are very similar, but the latter is some kind of other branch ( repo1 is not maintained anymore).
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Including Google Web Fonts link or import?
What is the preferred way of including Google Web Fonts to a page?
3 Answers
3
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How is “int* ptr = int()” value initialization not illegal?
The following code (taken from here ):
5 Answers
5
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Sublime Text 2: Trim trailing white space on demand
I know that Sublime Text 2 can delete the trailing white space on files upon saving.
5 Answers
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how to check the dtype of a column in python pandas
I need to use different functions to treat numeric columns and string columns. What I am doing now is really dumb:
6 Answer...
How can I use numpy.correlate to do autocorrelation?
I need to do auto-correlation of a set of numbers, which as I understand it is just the correlation of the set with itself.
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