In TraversableOnce, there is a sum meth开发者_如何学Good that is only usable if the contained type is Numeric (else it won\'t compile). I wonder if this is usable for other case (to avoid runtime chec
I am a bit new to templates in C++ so forgive me if this question is confusing or stupid, I just have a problem where I want to implement a clone smart pointer so I don\'t have to create copy construc
I have some classes with the same super-type. Therefore all of this classes have to override the same methods. Now I can call a method and commit it an object of the common super-type. But it is not a
I\'m reading Scott Meyers\' Effective C++. He is talking about traits classes, I understood that I need them to determine the type of the object during compilation time, but I can\'t under开发者_JS百科
I have two c++ programs that need to have a map type -> int that is known at compile time and equal between the two programs. Furthermore, I\'d like to automatically make sure at compile time that
I want create a special calculator. I think that case class is a good idea for operations: sealed class Expr
I need two traits concerning integers. The first one would be like std::is_integral (or boost::is_integral), but usable with user defined types (for example a class wrapping an int, say int_wrapper)
I am a Scala novice so forgive me if this is a stupid question, but here goes... Imagine I wish to create an extended Map type that includes additional methods.I can see a few ways to do this.The fir
I have an esoteric question involving Python metaclasses.I am creating a Python package for web-server-side code that will make it easy to access arbitrary Python classes via client-side proxies.My pr
When creating Traits in Pharo+Squeak, is it proper to use a T prefix like TMyT开发者_JAVA技巧rait and if yes, should the T go before any other prefix like TMPMyTrait (where \"MP\" is the other prefix)
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