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How does deriving work in Haskell?
Algebraic Data Types (ADTs) in Haskell can automatically become instances of some typeclasse s (like Show , Eq ) by deriving from them.
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What are transparent comparators?
In C++14, associative containers seem to have changed from C++11 – [associative.reqmts]/13 says:
4 Answers
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Rename a dictionary key
Is there a way to rename a dictionary key, without reassigning its value to a new name and removing the old name key; and without iterating through dict key/value?
In case of OrderedDict, do the same, while keeping that key's position.
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Can I define a class name on paragraph using Markdown?
Can I define a class name on paragraph using Markdown? If so, how?
10 Answers
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How does tuple comparison work in Python?
I have been reading the Core Python programming book, and the author shows an example like:
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How to add new elements to an array?
I have the following code:
18 Answers
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How does the C code that prints from 1 to 1000 without loops or conditional statements work?
I've found C code that prints from 1 to 1000 without loops or conditionals :
But I don't understand how it works. Can anyone go through the code and explain each line?
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Why does Decimal.Divide(int, int) work, but not (int / int)?
How come dividing two 32 bit int numbers as ( int / int ) returns to me 0 , but if I use Decimal.Divide() I get the correct answer? I'm by no means a c# guy.
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C# Set collection?
Does anyone know if there is a good equivalent to Java's Set collection in C#? I know that you can somewhat mimic a set using a Dictionary or a HashTable by populating but ignoring the values, but that's not a very elegant way.
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How to generate a core dump in Linux on a segmentation fault?
I have a process in Linux that's getting a segmentation fault. How can I tell it to generate a core dump when it fails?
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