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std::enable_if to conditionally compile a member function

...; which contains class Y<int> { public: /* instantiated from template < typename = typename std::enable_if< std::is_same< T, int >::value >::type > T foo() { return 10; } */ template < typename = ...
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Difference between Iterator and Listiterator?

...ng Set and List, see here: By using Iterator we can retrieve the elements from Collection Object in forward direction only. Methods in Iterator: hasNext() next() remove() Iterator iterator = Set.iterator(); Iterator iterator = List.iterator(); But we get ListIterator object only from the List ...
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Purpose of #!/usr/bin/python3

... That's called a hash-bang. If you run the script from the shell, it will inspect the first line to figure out what program should be started to interpret the script. A non Unix based OS will use its own rules for figuring out how to run the script. Windows for example will...
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Foreign key constraint may cause cycles or multiple cascade paths?

...ascade delete for both details, because there are multiple cascading paths from Master to SomeOtherTable (one via Detail1 and one via Detail2). Now you may already have understood this. Here is a possible solution: Master { ID, masterfields } DetailMain { ID, MasterID } Detail1 { DetailMainID, de...
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What is the best way to use a HashMap in C++?

... a hash table-based container, almost all implementations include hash_map from the SGI STL in some form or another. – James McNellis Aug 26 '10 at 18:27 ...
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Given an RGB value, how do I create a tint (or shade)?

...nction is roughly equivalent to raising each sRGB color component (ranging from 0 through 1) to a power of 2.2. (Note that "linear RGB" is not an RGB color space.) See also Violet Giraffe's comment about "gamma correction". ...
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iOS: how to perform a HTTP POST request?

...y is nice and a great way to get started. The HTTPS complications are far from trivial in various scenarios, and if you want to be robust in handling all the variations, you'll find the ASI library a real help. share ...
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Difference between constituency parser and dependency parser

...s to parsing provide similar information, but it often has to be distilled from the trees via techniques such as the head finding rules discussed in Chapter 11. web.stanford.edu/~jurafsky/slp3/11.pdf – gkiko Feb 2 '18 at 8:57 ...
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What's the point of const pointers?

...t for some cases such as loop variables where const would prevent the code from working). Note that this makes only sense in the definition of a function. It doesn’t belong in the declaration, which is what the user sees. And the user doesn’t care whether I use const for parameters inside the f...
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How to check if PHP array is associative or sequential?

...y, how to determine whether an array has sequential numeric keys, starting from 0 Consider which of these behaviours you actually need. (It may be that either will do for your purposes.) The first question (simply checking that all keys are numeric) is answered well by Captain kurO. For the seco...