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What is the point of Lookup?

... via that key in an efficient manner (rather than just iterating over them all, which is what GroupBy lets you do). For example, you could take a load of .NET types and build a lookup by namespace... then get to all the types in a particular namespace very easily: using System; using System.Collec...
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Header files for x86 SIMD intrinsics

... These days you should normally just include <immintrin.h>. It includes everything. GCC and clang will stop you from using intrinsics for instructions you haven't enabled at compile time (e.g. with -march=native or -mavx2 -mbmi2 -mpopcnt -mfma ...
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Private virtual method in C++

...d, without further exposing the virtual functions directly by making them callable by derived classes (as would be possible if the functions were just protected). The point is that virtual functions exist to allow customization; unless they also need to be invoked directly from within derived classe...
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PostgreSQL disable more output

...an anything about -P in the man pages. Thanks! – nortally May 5 '16 at 22:55 that is what I need exactly. Thanks :) ...
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How can I tell which homebrew formulae are upgradable?

I know when I brew update , it lists all ==> Updated Formulae , but when I've updated several times without running brew upgrade , how do I get a list of all apps that could be upgraded? ...
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Can inner classes access private variables?

...ct of the parent class. You have to make the parent child relationship manually. #include <string> #include <iostream> class Outer { class Inner { public: Inner(Outer& x): parent(x) {} void func() { std::string a =...
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Difference between Visibility.Collapsed and Visibility.Hidden

...have focus, you can't navigate to the control using the TAB key, etcetera, all of which still can if it would have a height and width of zero. But again, in terms of layout, you could say that. – Razzie May 20 '09 at 8:45 ...
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How to negate the whole regex?

... How do I convert CamelCase into human-readable names in Java? Regex for all strings not containing a string? A regex to match a substring that isn’t followed by a certain other substring. More examples These are attempts to come up with regex solutions to toy problems as exercises; they shou...
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How do I select the parent form based on which submit button is clicked?

...fferent). A user will only fill in one form, and I'd like to validate/etc all the forms with only one JS script. 5 Answers...
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What is the meaning of addToBackStack with null parameter?

I have a customer code. There is only one activity for all of the fragments i.e. the single activity is managing all the fragments. ...