All Questions
72 questions
2
votes
1
answer
349
views
What's the problem(s) with overriding a method with different access in base vs derived class
PC-Lint issues a warning when a method is overriden in a derived class with access specifier other than what is the inherited access. For example
class B {
public:
virtual void fubar(void);
};
...
- 14.4k
1
vote
1
answer
760
views
What will happen when a class inherits a public method with reference to private properties?
I defined private properties hp and atk for warrior class and supposed that they won't
be inherited by derived classes.
In the following code, however, The derived class knight inherits a public ...
- 23
0
votes
0
answers
116
views
How do you add private members of one class to an array of a different class
I am relatively new to c++ and I have just learned how to use an array in a class, but I can't figure out how to add private members of one class to an array of a different class. I have a base class ...
11
votes
2
answers
347
views
Exposing private base class name with `using` in C++
In a situation when some struct D inherits another struct A twice: once privately via B and the second time publicly via C, is it allowed to write using B::A in D?
struct A {};
class B : A {};
struct ...
- 22.4k
2
votes
0
answers
289
views
Member function of (public) derived class is inaccessible from main
I have four classes (classic diamond problem in C++). Let's call the grandparent class A, the parent classes B and C and the child class D. Both B and C have a public member function called attack. I ...
- 231
0
votes
1
answer
114
views
c++: private inheritance ambiguous call [duplicate]
In the code below the public method Base2::f() is expected to become a private member of the Derived class however the compiler complains about ambiguity.
The question is on the basic understanding of ...
- 1,145
1
vote
1
answer
1k
views
Why can a C++ template class access a private member of its base class?
With Visual Studio 2019 (v 16.7.3), I have found that a template class can access the private members of it non-template base class. Is this an expected behavior or is it a compiler bug?
When the ...
- 9,936
1
vote
1
answer
82
views
Can I forbid calling private member of derived class from base?
I has this code:
struct A {
virtual void f() {}
};
struct B: A {
private:
void f() override {}
};
...
B b;
A& a = b;
a.f();
And ofcourse it will call f() from B cause private is checked on ...
- 1,320
1
vote
2
answers
349
views
Can't construct from std::initializer_list when privately inheriting from std::array
I'm trying to make a wrapper of std::array to perform boundary checks as suggested by this answer. This is the code I have:
template <typename T, size_t N>
class Array : private std::array<T,...
- 13
1
vote
1
answer
68
views
private member vs private ineritance
I have a class A that I can not edit:
class A{
public:
int thisCoolFuntion(){
return 0;
}
};
I want to create a class that uses thisCoolFuntion() (let's call it class B or C)
I want ...
- 1,485
0
votes
2
answers
78
views
C++ inheritance private members
I have a question about inheritance:
For example I have a base class A with private members: x, y
I have getter functions getx and gety,
I want to use the getter functions from A to class B that ...
- 49
14
votes
3
answers
281
views
C++: How to prevent private names from polluting derived types?
I was shocked today by the fact that this code snippet has an ambiguous name reference:
class A
{
private:
typedef int Type;
};
class B
{
public:
typedef int Type;
};
class D : A, B
{
...
- 1,563
-1
votes
1
answer
122
views
Inheritance/Polymorphism - Am I forced to use "protected" variables?
I am currently working with Big C++ 2nd Edition, using Code::Blocks 17.12, on the chapter for inheritance
The book introduces the protected variable type for cases in which you want to allow a ...
- 759
-5
votes
3
answers
49
views
How private data member is used by an inherited class object?
Do private members are also inherited?
Why get() function was able to read variable n
#include <iostream>
using namespace std;
class base
{
int n;
public:
void get()
{
cin &...
user11353224
0
votes
2
answers
67
views
How to access the function in base class when using singleton class as a derived class
It is a header of generator class;
#ifndef GENERATOR_H
#define GENERATOR_H
class Generator
{
public:
Generator(int);
~Generator();
int getBits();
private:
...
- 65