All Questions
13
questions
0
votes
1
answer
265
views
C++ - Accessibility VS visibility
I am working on an exercise to make sense of C++'s accessibility VS visibility.
The following code doesn't compile obviously, but this is what it ideally must be.
B inherits from A with template ...
user10671686
1
vote
1
answer
61
views
c++ Inheritance with templates and visibility
I don't understand att all inheritance with templates..
template <typename T>
class Mere
{
protected:
Mere();
};
class Fille2 : public Mere<int>
{
protected:
Fille2(){
...
- 13
2
votes
4
answers
170
views
Not able to call base class constructor from dericed class with parameter in c++
I have below scenario in c++ within DEV c++
class base{
int i=0;
public:
base(){
cout<<"base default constructor"<<endl;
}
base(int i){
...
- 21
0
votes
3
answers
320
views
C++ virtual function from privately inherited class, promoted to public in derived class declaration
I have the following scheme:
class Interface
{
virtual ~Interface() { }
virtual void foo() const = 0;
virtual void bar() const = 0;
}
//Interface is derived privately mostly for ...
- 9,162
-1
votes
2
answers
211
views
Two classes inheriting from the same base to see each other
I have a program with a lot of classes. I want classes in the program to be visible to each other. For that, I am following a trick such that all classes are inherited from a base class, which holds ...
- 127
4
votes
1
answer
600
views
Destructor protection in abstract base class is not inherited in C++?
I found a memory leak in my code that was caused by calling only the base class destructor for objects. This problem is understood: I already added the virtual to the destructor of the interface class ...
- 9,965
3
votes
0
answers
27
views
Inherited data member in generic class not visible in derived class unless prefixed with this-> [duplicate]
I have encountered the following problem with someone else's code which presumably was compiling at some point. A base class is a generic container of a data member of type T. This data member is ...
- 2,115
6
votes
4
answers
3k
views
Policy inheritance and inaccessible protected members
It seems that a protected member from a template policy class is inaccessible, even with a class hierarchy which seems correct.
For instance, with the following code snippet :
#include <iostream&...
- 2,741
1
vote
2
answers
139
views
visibility of a nested class in an inherited class
The code I work on is roughly the following:
// List.h
template <typename T> class List{
template <typename TT> class Node;
Node<T> *head;
/* (...) */
template <...
43
votes
4
answers
212k
views
Calling the base class constructor from the derived class constructor
I have a question:
Say I have originally these classes which I can't change (let's say because they're taken from a library which I'm using):
class Animal_
{
public:
Animal_();
int getIdA()
...
- 1,767
1
vote
3
answers
199
views
Private inheritence and constructors
I have following problem:
want to inherit some class as protected (outside derived class i dont need any member or function from base class)
want to be able to access base constructor in some way
...
- 529
0
votes
1
answer
544
views
Inheritance inside a template - public members become invisible?
I'm trying to use inheritance among classes defined inside a class template (inner classes). However, the compiler (GCC) is refusing to give me access to public members in the base class.
Example ...
- 40.7k
1
vote
5
answers
1k
views
Why is this explicit scope resolution necessary?
Setup:
class A {
public:
void a() {}
};
class B {
public:
void b() {}
};
class C: public A, public B {
public:
void c() {}
};
What (I thought) I should be able to do:
C* foo = ...
- 14.2k