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Using std Namespace

...ng namespace std;. It imports all sorts of names into the global namespace and can cause all sorts of non-obvious ambiguities. Here are some common identifiers that are in the std namespace: count, sort, find, equal, reverse. Having a local variable called count means that using namespace std won't...
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Is there a difference between foo(void) and foo() in C++ or C?

...void), therefore, we achieve the same interpretation across both languages and make our headers multilingual (though we usually need to do some more things to the headers to make them truly cross-language; namely, wrap them in an extern "C" if we're compiling C++). ...
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WordPress is giving me 404 page not found for all pages except the homepage

All of a sudden I go to my WordPress website and all the pages give me a 404 page not found page. I'm assuming the problem lies with the permalink structure, which I could swear I did not touch. The permalink setting is on "month and name." ...
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What's so wrong about using GC.Collect()?

Although I do understand the serious implications of playing with this function (or at least that's what I think), I fail to see why it's becoming one of these things that respectable programmers wouldn't ever use, even those who don't even know what it is for. ...
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Explain the concept of a stack frame in a nutshell

...In the case of a call stack, a stack frame would represent a function call and its argument data. If I remember correctly, the function return address is pushed onto the stack first, then the arguments and space for local variables. Together, they make the "frame," although this is likely architec...
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How do I get the row count of a pandas DataFrame?

I'm trying to get the number of rows of dataframe df with Pandas, and here is my code. 14 Answers ...
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Why is a 3-way merge advantageous over a 2-way merge?

Wikipedia says a 3-way merge is less error-prone than a 2-way merge, and often times doesn't need user intervention. Why is this the case? ...
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What is the HEAD in git?

There seems to be a difference between the last commit, the HEAD and the state of the file I can see in my directory. 5 Ans...
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What Haskell representation is recommended for 2D, unboxed pixel arrays with millions of pixels?

...ge-processing problems in Haskell. I'm working with both bitonal (bitmap) and color images with millions of pixels. I have a number of questions: ...
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Difference between dispatch_async and dispatch_sync on serial queue?

...k is finished whereas dispatch_async return after it is added to the queue and may not finished. for this code dispatch_async(_serialQueue, ^{ printf("1"); }); printf("2"); dispatch_async(_serialQueue, ^{ printf("3"); }); printf("4"); It may print 2413 or 2143 or 1234 but 1 always before 3 for ...