Suppose i have a socket class: class Socket{ public: … Some Code … Socket(int type){ isServer = type; //some code } virtual void Send(string s); virtual void Send(string s, int clientID); … Some Code … private: int isServer; }; This is to be used both as a server and client. Now I need to have ..
Category : abstraction
What is abstraction implemented at the class level in C++? Is it different from the abstraction realized at the level of classes and interfaces in C# and Java? Are there any significant differences between the three languages in this case? Source: Windows Que..
I have been trying to develop a single header library-ish file that has all the code needed to setup and abstract window creation as well as OpenGL basic type abstraction to the apps needs. Everything has been going smoothly up to now, until I tried to move the window around. The context seems to just ..
I try to build a Customer manager program in c++. In my program, there is Customer class (base class), Guest (derived from customer), VIP (derived from Guest), a vector<Customer*> array in the main to store all customers. So if I want to promote a Guest object from the vector, what is the best way of ..
According to what I have learned, Abstraction is a concept of hiding internal implementation. We can achieve abstraction in java with interfaces, abstract keyword(for class/method) as well as through methods. eg Scanner s = new Scanner(System.in); int x = s.nextInt(); Here we need not know anything about nextInt() method. So I can say this is ..
The More General Question I am wondering if there is a standard way that operating systems / desktop managers use to expose the user’s preference regarding the placement of the window frame controls (Close, Maximize/Miniaturize, Minimize). For platforms like Windows and MacOS, it’s "pretty" safe to assume that the users wants their window controls on ..
I am currently working with a a class, and three other classes that derive from that base class. The base class is supposed to be essentially abstract, so that I can call the virtual function of a base class, and have it do the expected function of the derived class. My end goal is to ..
Let’s say I have the following class: template <typename T> class SomeClass : Parent<T> { public: // I have a function such as this one: T DoSomething(const T &t) { return t.DoSomething(some_data); } // But `T` might be a pointer, so sometimes I will need something like the following // instead (which obviously doesn’t work ..
I am relatively new to C++ and am building a matrix class for carrying out with it common linear algebra operations. Some snippet of the hpp: template<const int rows, const int columns, typename T=float> struct Matrix3D { const int shape[2] = {rows, columns}; float content[rows][columns]{}; Matrix3D() { for (int i = 0; i < rows; ..
I’m writing a simple wrapper in C++ around GLFW and OpenGL, as an exercice. I have a class Window and a class Renderer. The Window class owns a Renderer member. Window sets the GLFW context in its constructor and run the main loop, and call for its Renderer member to draw. Renderer sets the buffers ..
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