What is the use of this pointer?

Related MCQs

• Which of the following is true about new when compared with malloc: 1) new is an operator, malloc is a function 2) new calls constructor, malloc doesn’t 3) new returns appropriate pointer, malloc returns void * and pointer needs to typecast to appropriate type.
• Which of the following is true about this pointer?
• Is it fine to call delete twice for a pointer? #include<iostream> using namespace std; int main() { int *ptr = new int; delete ptr; delete ptr; return 0; }
• What happens when delete is used for a NULL pointer? int *ptr = NULL; delete ptr;
• Which of the followings is/are pointer-to-member declarator?
• Which among the following is/are type(s) of this pointer?
• Which is the pointer which denotes the object calling the member function?
• When are the pointer types known for upcasting the objects?
• Which of the following functions must use reference?