class A {
public:
void f();
protected:
A() {}
A(const A&){}
};
Examine the class declaration shown above. Why are the
default and copy constructors declared as protected?
1. To ensure that A cannot be created via new by a more
derived class
2. To ensure that A cannot be copied
3. To ensure that A cannot be used as a base class except
when public inheritance has been used
4. To ensure that A cannot be created/copied outside the
inheritance chain
5. To ensure that A cannot be instantiated as a static variable
- 1 Answers
- 7454 Views
- I also Faced
- E-Mail Answers
Answer / prasenjit roy
4. To ensure that A cannot be created/copied outside the
inheritance chain
| Is This Answer Correct ? | 6 Yes | 0 No |
Which software is best for c++ programming?
What is the difference between = and == in C?
16 Answers Christ University, Intel,
Find out the bug in this code,because of that this code will not compile....... #include <iostream> #include <new> #include <cstring> using namespace std; class balance { double cur_bal; char name[80]; public: balance(double n, char *s) { cur_bal = n; strcpy(name, s); } ~balance() { cout << "Destructing "; cout << name << "\n"; } void set(double n, char *s) { cur_bal = n; strcpy(name, s); } void get_bal(double &n, char *s) { n = cur_bal; strcpy(s, name); } }; int main() { balance *p; char s[80]; double n; int i; try { p = new balance [3]; // allocate entire array } catch (bad_alloc xa) { cout << "Allocation Failure\n"; return 1; }
What is a tree in c++?
Why is standard template library used?
What is code reusability in c++?
What is a storage class?
Is c better than c++?
What are keywords in c++?
In which situation the program terminates before reaching the breakpoint set by the user at the beginning of the mainq method?
advantages and disadvantages of using Borland C++ / version 5.
What is ios :: in in c++?
STL 
