#include <iostream>
using namespace std;
class sur
{
int arr[10], max, size, i, j;
public:
virtual void sort(int arr[], int size)
{
}
};
class sur2:public sur{
public:
int max;
void sort(int arr[],int size){
for (int i = 0; i < size; i++)
{
for (int j = i + 1; j < size; j++)
{
if (arr[j] < arr[i])
{
max=arr[i];
arr[i]=arr[j];
arr[j]=max;
}
}
}
}
};
void sort(int arr[], int size)
{
int max;
for (int i = 0; i < size; i++)
{
for (int j = i + 1; j < size; j++)
{
if (arr[j] > arr[i])
{
max=arr[i];
arr[i]=arr[j];
arr[j]=max;
}
}
}
}
int main()
{
int size;
cout << "enter array size\n";
cin >> size;
int arr[size];
cout << "enter array\n";
for (int i = 0; i < size; i++)
{
cin >> arr[i];
}
sur a;
void (*fr)(int arr[],int size);
fr=sort;
fr(arr,size);
cout<<"\n array after function pointer sort\n";
for (int i = 0; i < size; i++)
{
cout<<arr[i]<<" ";
}
sur*obj;
sur2 obj2;
obj=&obj2;
obj->sort(arr,size);
cout<<"\nafter virtual sort\n";
for (int i = 0; i < size; i++)
{
cout<<arr[i]<<" ";
}
return 0;
}
//refrence for funtoion pointer
/*#include <iostream>
using namespace std;
int add(int a , int b)
{
return a+b;
}
int main()
{
int (*funcptr)(int,int); // function pointer declaration
funcptr=add; // funcptr is pointing to the add function
int sum=funcptr(5,5);
std::cout << "value of sum is :" <<sum<< std::endl;
return 0;
} */
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