Chapter 9.2, Problem 11STE

Program Plan Intro

Pointer in C++:

A pointer is a variable whose value will be another variable’s address. Generally, a pointer variable is declared as follows:

type *var-name;

Here, “type” is the pointer’s base type and “var-name” is the pointer variable name. The asterisk is used to designate a variable as a pointer.

The delete operator:

The delete operator is used to destruct the object that is created with new by deallocating the memory associated with the object.

The syntax of delete operator is as follows:

[] delete cast-expression

[] delete[] cast-expression

In the above statement, the “cast-expression” argument must be a pointer to a block of memory previously allocated for an object created with the new operator.

Given code:

The following code is used to create a dynamic array.

int *entry; //Initialise pointer

entry = new int[10]; //create a dynamic array