• & produces the address of its operand.

　　　　For example,the following statements an integer variable ‘a‘ and a pointer to an integer variable ‘p‘ are declared.Then the address of the variable a is determined with the & operator and is assigned to the pointer variable.

1 int a, *p;2 p = &a;

• * is the indirection operator and is used with pointers to access the value being pointed to.