#include <iostream> template <class Derived> class Base { public: void method1() { static_cast<Derived*>(this)->method1(开发者_开发问答);
Is there a way to use the new std::array type polymorphically in the size of the array?That is, if I have a function of the form
I\'m learning C++, trying to write good, polymorphic code, and running in to some confusion. I have a class Er_1Sine which has two superclasses: \"Generator\" and \"Triggerable\".
I have no idea if the title makes any sense but I can\'t find the right words to descibe my \"problem\" in one line. Anyway, here is my problem. There is an interface for a search:
Why doesn\'t this work, and what would be a good alternative? class Grandparent { void DoSomething( int number );
#include <iostream> #include <strin开发者_如何学编程g> #include <map> #include <vector>
here my git https://gist.github.com/774510 the problem is if I\'m using method:destroy in the _comments.html.erb I get sent to articles/1/comments, where no route matches, furthermore the comme开发者
I am trying to implement the next 2 functions Number& DoubleClass::operator+( Number& x); Number& IntClass::operator+(Number& x);
.NET 4 introduces covariance.I guess it is useful.After all, MS went through all the trouble of adding it to the C# language.But, why is Covariance more useful than good old polymorphism?
This is my code: class base1 { } class der1 extends base1 { public static void main(String []args) { base1 b=new der1();
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