C++ Programming - Constructors and Destructors - Discussion
Discussion Forum : Constructors and Destructors - Programs (Q.No. 3)
3.
Which of the following statement is correct about the program given below?
#include<iostream.h>
class Bix
{
int x;
public:
Bix();
~Bix();
void Show() const;
};
Bix::Bix()
{
x = 25;
}
void Bix::Show() const
{
cout<< x;
}
int main()
{
Bix objB;
objB.Show();
return 0;
}Discussion:
19 comments Page 1 of 2.
Sai said:
1 decade ago
Kindly note that it's not due to inaccessibility of x. it is very well accessible in Bix::<<anything>> . The destructor is only declared, but not defined anywhere. Hence the compiler throws " undefined reference to Bix::~Bix()" when it's called after the return statement of main().
Jayanthi Akula said:
10 years ago
When we are calling any constant function. The object of that function should be constant. Here in program "objB" is the object of "Bix" which is having a normal object.
So a normal object can not call its constant function. Try the program by declaring the object as "const" like const Bix objB.
So a normal object can not call its constant function. Try the program by declaring the object as "const" like const Bix objB.
Bob marley said:
1 decade ago
In this program we should also define the destructor, like as,
~Bix()
{ }
It should be like that...we can't not left destructor without defining it :).
~Bix()
{ }
It should be like that...we can't not left destructor without defining it :).
Priyank said:
1 decade ago
The destructor is only declared, but not defined anywhere
i.e, it is given like this "Bix::~Bix()" and left without definition.
i.e, it is given like this "Bix::~Bix()" and left without definition.
Vigneshwar said:
9 years ago
Const function does not allow the object members to be modified. In this program, we are not modifying so it will print the output 25.
Priya modak said:
7 years ago
It is because of undefined reference to the destructor.
write ~Bix(); as ~Bix(){};
Then it will work.
write ~Bix(); as ~Bix(){};
Then it will work.
Neha said:
7 years ago
program throw runtime error =Bix::~Bix(void)" not compile time.
Please help me to solve this.
Please help me to solve this.
Niketa Agarwal said:
9 years ago
It is because of undefined reference to destructor.
write ~Bix(); as ~Bix(){};
Then it will work.
write ~Bix(); as ~Bix(){};
Then it will work.
(1)
Rexi said:
1 decade ago
Destructor has to destroy the object. Thus we have to define destructor inside the main function.
Raghavendra said:
6 years ago
It's because of cout it should be std::cout and include file should be iostream not iostream.h.
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