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Compile time string hashing
I have read in few different places that using C++11's new string literals it might be possible to compute a string's hash at compile time. However, no one seems to be ready to come out and say that it will be possible or how it would be done.
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Summarizing multiple columns with dplyr? [duplicate]
I'm struggling a bit with the dplyr-syntax. I have a data frame with different variables and one grouping variable. Now I want to calculate the mean for each column within each group, using dplyr in R.
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What is the behavior of integer division?
For example,
6 Answers
6
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Subclassing a Java Builder class
Give this Dr Dobbs article , and the Builder Pattern in particular, how do we handle the case of subclassing a Builder? Taking a cut-down version of the example where we want to subclass to add GMO labelling, a naive implementation would be:
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Getting attributes of a class
I want to get the attributes of a class, say:
18 Answers
18
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When do you use Git rebase instead of Git merge?
When is it recommended to use Git rebase vs. Git merge?
16 Answers
16
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UnboundLocalError on local variable when reassigned after first use
The following code works as expected in both Python 2.5 and 3.0:
12 Answers
12
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How can I convert byte size into a human-readable format in Java?
How can I convert byte size into a human-readable format in Java?
25 Answers
25
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List of foreign keys and the tables they reference
I'm trying to find a query which will return me a list of the foreign keys for a table and the tables and columns they reference. I am half way there with
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Calling constructor from other constructor in same class
I have a class with 2 constructors:
3 Answers
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