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What is a 'Closure'?
...on about Currying and closures were mentioned.
What is a closure? How does it relate to currying?
23 Answers
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What's so bad about Template Haskell?
It seems that Template Haskell is often viewed by the Haskell community as an unfortunate convenience. It's hard to put into words exactly what I have observed in this regard, but consider these few examples
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How do I write a bash script to restart a process if it dies?
...python script that'll be checking a queue and performing an action on each item:
8 Answers
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What is duck typing?
...reading random topics on software online and did not completely understand it.
13 Answers
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UnboundLocalError on local variable when reassigned after first use
...s to them from inside or outside the function. If a variable is assigned within a function, it is treated by default as a local variable. Therefore, when you uncomment the line you are trying to reference the local variable c before any value has been assigned to it.
If you want the variable c to...
C++ - passing references to std::shared_ptr or boost::shared_ptr
If I have a function that needs to work with a shared_ptr , wouldn't it be more efficient to pass it a reference to it (so to avoid copying the shared_ptr object)?
What are the possible bad side effects?
I envision two possible cases:
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What XML parser should I use in C++? [closed]
... documents that I need to parse and/or I need to build XML documents and write them to text (either files or memory). Since the C++ standard library does not have a library for this, what should I use?
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Can a local variable's memory be accessed outside its scope?
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How can it be? Isn't the memory of a local variable inaccessible outside its function?
You rent a hotel room. You put a book in the top drawer of the bedside table and go to sleep. You check out the next morning, but "forget" to g...
To ARC or not to ARC? What are the pros and cons? [closed]
I've yet to use ARC, since the majority of the code in the project I'm working on at the moment was written pre-iOS 5.0.
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Is it good practice to NULL a pointer after deleting it?
...be that doing so just masks double delete bugs and leaves them unhandled.
It's best to not have double delete bugs, obviously, but depending on ownership semantics and object lifecycles, this can be hard to achieve in practice. I prefer a masked double delete bug over UB.
Finally, a sidenote regar...