Sponsored Content
Top Forums Programming Size of Derived class, upon virtual base class inheritance Post 302866733 by Corona688 on Tuesday 22nd of October 2013 03:45:19 PM
Old 10-22-2013
Sorry, I was away last week, but that's exactly it.

Making it 'virtual' means the computer needs to store extra information in the class, since it doesn't know what functions to call it it from the type it's supposed to be alone.
This User Gave Thanks to Corona688 For This Post:
 

9 More Discussions You Might Find Interesting

1. Programming

How to make a function friend to both base and derived class

Hi, I have a base class and derived a class from the base class, i want to print & read the data for the object created for the derived class,so i have overloaded both the << and >> operators and also have done the foward declaration. Below is the code snippet, #include <iostream> class... (3 Replies)
Discussion started by: ennstate
3 Replies

2. UNIX for Dummies Questions & Answers

car class (not school class)

im just trying to have some fun and kill some time writing a c++ program that has a person type in a car make and model then gives them a year and a price. or something like that. i always have problems getting it goin but once the ball is rolling im usually pretty good. anyone wanna help me out? ... (1 Reply)
Discussion started by: rickym2626
1 Replies

3. Programming

C++ class definition with a member of the same class

Hi, i have a question about C++. Is it possible to declare a class with a member ot the same class? For example, a linked list or i want to convert this C code to C++ class (Elemento) typedef struct elemento { char name; char value; List<struct elemento> ltElementos; ... (7 Replies)
Discussion started by: pogdorica
7 Replies

4. Programming

Base class's variables not accessible????

Hi friends, The derived class cannot access the base class's variables in my program. You can have a look at my code, I am actually using class templates. #include <iostream> using namespace std; template <class T> class Sum { friend void Check(Sum &s, T a, T b) { T x,... (2 Replies)
Discussion started by: gabam
2 Replies

5. Programming

static use for class inside the same class c++

Hi, I believe the next code is wrong: class Egg { Egg e; int i; Egg(int ii=0) : i(ii) {} }; because you would end up with an endless definition (memory allocation) of Egg objects, thus int i. Ok, so God Eckel proposes for a singleton: class Egg { static Egg e; int... (5 Replies)
Discussion started by: xavipoes
5 Replies

6. UNIX for Advanced & Expert Users

Get pointer for existing device class (struct class) in Linux kernel module

Hi all! I am trying to register a device in an existing device class, but I am having trouble getting the pointer to an existing class. I can create a class in a module, get the pointer to it and then use it to register the device with: *cl = class_create(THIS_MODULE, className);... (0 Replies)
Discussion started by: hdaniel@ualg.pt
0 Replies

7. Programming

Size of derived class, in case of multiple inheritance

Why, here the size of class 'Derived' is 8 ? class Base1 { public: virtual void f() { } }; class Base2 { public: virtual void f() { } }; class Derived : public Base1, Base2 { public: virtual void f() { } }; (1 Reply)
Discussion started by: techmonk
1 Replies

8. Programming

C++ : Base class member function not accessible from derived class

Hello All, I am a learner in C++. I was testing my inheritance knowledge with following piece of code. #include <iostream> using namespace std; class base { public : void display() { cout << "In base display()" << endl; } void display(int k) {... (2 Replies)
Discussion started by: anand.shah
2 Replies

9. Shell Programming and Scripting

Derived both lines base on pattern

Dear All, I have a requests to retrieve all lines if second line last columns meets certain criteria. Here is the output of the result Table: DSSBDW.DA_MASK_CLK_AR 120908 0 86 86 - 1934528 0 70 100 -*- Table: DSSBDW.DA_MASK_CLK_IP 310657 22030 143 185 - 5281169 7 88 77 *-* Table:... (5 Replies)
Discussion started by: ckwan123
5 Replies
ExtUtils::XSpp::Node::Method(3pm)			User Contributed Perl Documentation			 ExtUtils::XSpp::Node::Method(3pm)

NAME
ExtUtils::XSpp::Node::Method - Node representing a method DESCRIPTION
An ExtUtils::XSpp::Node::Function sub-class representing a single method declaration in a class such as class FooBar { int foo(double someArgument); // <-- this one } METHODS
new Creates a new "ExtUtils::XSpp::Node::Method". Most of the functionality of this class is inherited. This means that all named parameters of ExtUtils::XSpp::Node::Function are also valid for this class. Additional named parameters accepted by the constructor: "class", which can be an ExtUtils::XSpp::Node::Class object, "const" and "virtual" that are true if the method has been declared "const" or "virtual". perl_function_name Returns the name of the Perl function (method) that this method represents. It is constructed from the method's class's name and the "perl_name" attribute. is_method Returns true, since all objects of this class are methods. ACCESSORS class Returns the class (ExtUtils::XSpp::Node::Class) that the method belongs to. virtual Returns whether the method was declared virtual. set_virtual Set whether the method is to be considered virtual. const Returns whether the method was declared const. access Returns 'public', 'protected' or 'private' depending on method access declaration. By default, only public methods are generated. perl v5.14.2 2011-12-20 ExtUtils::XSpp::Node::Method(3pm)
All times are GMT -4. The time now is 09:22 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy