Virtual
Should I use a physical page for a list?
I have a table with quite a few records. Now at the moment I select them on one page. But I want to create a list. The list would contain multiple (about 5-10) pages.[详细]
2023-03-31 18:50 分类:问答Template and Virtual functions in C++ ? allowed ?
I\'ve read over the web that template virtual functions are not allowed , is it true ? It\'s a little bit weird since this code compile great on my Eclipse\'s g++[详细]
2023-03-31 17:11 分类:问答Array of polymorphic base class objects initialized with child class objects
Sorry for the complicated title. I have something like this: class Base { public: int SomeMember; Base() : SomeMember(42) {}[详细]
2023-03-31 12:56 分类:问答How to get the attributes override properties?
Does not work Attribute.GetCustomAttribute: using System; class Program { static void Main() { var p = typeof(MyClass2).GetProperty(\"Value\");[详细]
2023-03-31 11:09 分类:问答Choosing between virtual function, function_pointer and functors
I am writing a class in which a one of the function\'s implementation depends on the users. Currently I have it as a virtual function and users need to override my class to provide its implementation.[详细]
2023-03-31 08:29 分类:问答Multiple (diamond) inheritance compiles without "virtual", but doesn't with
Given the following code (without virtual inheritance) : class A { public: virtual void f() = 0; }; class B : public A[详细]
2023-03-31 01:54 分类:问答Is the "virtual" keyword optional in base classes in C++?
I\'m trying to understand the function of the \"virtual\" keyword in C++ - consider this example: #ifdef USE_VIRTUAL[详细]
2023-03-31 01:20 分类:问答Does C++ allow multiple levels of virtualness?
I have a base class called Object. PhysicsObject inherits from Object. Ball inherits from PhysicsObject, and SoftBall inherits from Ball. Something like this:[详细]
2023-03-30 02:07 分类:问答cpp inheritance questions
What other reason apart from inheritance should a class need to have its functions as virtual? What happens during run time where a base class is inherited and the derived class doesn\'t implement f[详细]
2023-03-29 22:39 分类:问答Override contra-variance workaround needed
I\'m having difficulty finding the (what I\'m sure is a very common) design pattern to work around the following problem. Consider this piece of code:[详细]
2023-03-29 14:07 分类:问答