Object Oriented Programming with C++, Second Edition

12.3 THE * OPERATOR

The unary operator * is known as indirection operator or dereferencing operator. When we apply it to a variable say p we write *p and pronounce simply as “star p”. By *p we understand a variable pointed by p. Therefore, p must be a variable declared as pointer variable. To declare any variable as of type pointer, it has to be declared as

int *p ;

Here int is the type declarator. Variable p points to variable of type int. If you want a pointer to float, you can declare float *p; If we have an ordinary variable (not declared as pointer) as say int i; we cannot apply * to i. “*i” will produce compilation error. Also we cannot apply * to any expression. Thus, *(2+4) will be illegal. Let us write a simple program.

Problem: Write ...