Which function clears the flag?

Which of the following is not a type of Constructor?

What will be the output of the following C program that uses a union?

Which function is used to check whether a character is a digit?

 Where does the execution of the program starts?

Which of the following operators cannot be overloaded in cpp/c?

What happens if a class does not have a name?

What is the output?

#include<stdio.h>

int main()

{

char s[]="Abekus";

*(s+2)='a';

getchar();

return 0;

}

 How run-time polymorphisms are implemented in C++? 

What happens if a pointer is deleted twice in a program as shown in the following C++ statements?

int *ptr = new int;
delete ptr;
delete ptr;