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Whm>y m> use non-member begin m>and m> end functions in C++11?
Everm>y m> stm>and m>ard container has a begin m>and m> end method for returning iterators for that container. However, C++11 has apparentlm>y m> introduced free functions called std::begin m>and m> std::end which call the begin m>and m> end member functions. So, instead of writing
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403 Forbidden vs 401 Unauthorized HTTP responses
...lem with 401 Unauthorized, the HTTP status code for authentication errors. m>And m> that’s just it: it’s for authentication, not authorization.
Receiving a 401 response is the server telling m>y m>ou, “m>y m>ou aren’t
authenticated–either not authenticated at all or authenticated
incorrectlm>y m>–but ...
Casting vs using the 'as' kem>y m>word in the CLR
...g, which has largelm>y m> replaced the as operator, as m>y m>ou can now write:
if (rm>and m>omObject is TargetTm>y m>pe tt)
{
// Use tt here
}
Note that tt is still in scope after this, but not definitelm>y m> assigned. (It is definitelm>y m> assigned within the if bodm>y m>.) That's slightlm>y m> annom>y m>ing in some cases, so if m>y m>ou ...
Dictionarm>y m> vs Object - which is more efficient m>and m> whm>y m>?
What is more efficient in Pm>y m>thon in terms of memorm>y m> usage m>and m> CPU consumption - Dictionarm>y m> or Object?
8 Answers
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What does middleware m>and m> app.use actuallm>y m> mean in Expressjs?
... haven't found a clear, concise explanation of what middleware actuallm>y m> is m>and m> what the app.use statement is doing. Even the express docs themselves are a bit vague on this. Can m>y m>ou explain these concepts for me please?
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C++ lambda with captures as a function pointer
I was plam>y m>ing with C++ lambdas m>and m> their implicit conversion to function pointers. Mm>y m> starting example was using them as callback for the ftw function. This works as expected.
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Hm>and m>ler vs Asm>y m>ncTask vs Thread [closed]
I got slightlm>y m> confused about the differences between Hm>and m>lers , Asm>y m>ncTask m>and m> Threads in m>And m>roid. I've read quite a few blogs m>and m> questions here in StackOverflow.
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Whm>y m> do we need a pure virtual destructor in C++?
I understm>and m> the need for a virtual destructor. But whm>y m> do we need a pure virtual destructor? In one of the C++ articles, the author has mentioned that we use pure virtual destructor when we want to make a class abstract.
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Finding what branch a Git commit came from
...e commit was made, the best m>y m>ou can do in this case is examine the reflogs m>and m> find when the commit was first introduced to m>y m>our repositorm>y m>; with anm>y m> luck, m>y m>ou fetched the branch it was committed to. This is a bit more complex, because m>y m>ou can't walk both the commit tree m>and m> reflogs simultaneouslm>y m>. ...
What is the precise meaning of “ours” m>and m> “theirs” in git?
... might sound like too basic of a question, but I have searched for answers m>and m> I am more confused now than before.
7 Answer...