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What are some uses of template template parameters?

...PU. Both templates can work with all basic types, like float, double, int, etc And I also have a class template (simplified): template <template <class> class TT, class T> class CLayerT: public Layer<TT<T> > { TT<T> weights; TT<T> inputs; TT<int&gt...
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Which is faster: while(1) or while(2)?

...story is: There exists a layer of translation between C++ source code and CPU instructions, and this layer has important implications for performance. Therefore, performance cannot be evaluated by only looking at source code. The compiler should be smart enough to optimize such trivial cases. Progr...
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What's the difference between an inverted index and a plain old index?

...her RDBMS Consult MySQL the docs). Indexing can also be related to caching etc. Inverted index creates file with structure that is primarily intender for (fulltext) searching. Inverted index consists of two main files: Vocabulary Occurences In vocabulary are common words extracted from text (...
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Creating an object: with or without `new` [duplicate]

...ng to some specific implementation (say, a computer with an x86-compatible CPU) is needlessly restrictive and leads to a lack of rigour/provability within the scope of the rules defined by the C++ standard. The C++ standard gives rules about storage duration, not about some hypothetical data structu...
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Android Game Keeps Getting Hacked [closed]

... the game and only the latest version should be able to "post the records" etc. so the active users would have to update to keep in the loop. share | improve this answer | fo...
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When splitting an empty string in Python, why does split() return an empty list while split('\n') re

... tries to be clever. It splits on any whitespace, tabs, spaces, line feeds etc, and it also skips all empty strings as a result of this. >>> " fii fbar \n bopp ".split() ['fii', 'fbar', 'bopp'] Essentially, .split() without parameters are used to extract words from a string, as oppos...
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deciding among subprocess, multiprocessing, and thread in Python?

...multiprocessing model gives each process its own memory, file descriptors, etc. A crash or unhandled exception in any one of them will only kill that resource and robustly handling the disappearance of a child or sibling process can be considerably easier than debugging, isolating and fixing or wor...
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Python pandas: fill a dataframe row by row

... just want to ask, is this CPU and memory efficient? – czxttkl Jun 29 '17 at 18:52 1 ...
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Why '&&' and not '&'?

...d the operator, i.e. & is implement to compute the bitwise logical AND etc. For enumerations (chapter 7.11.2): They are implemented to perform the logical operation of the underlying type of the enumeration. For bools and nullable bools (chapter 7.11.3 and 7.11.4): The result is not computed usi...
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how to remove the dotted line around the clicked a element in html

... @cpu_meltdown Try input:focus{outline: none} – Sowmya Nov 10 '16 at 10:45  |  ...