Pointer: Pointer will allow the user to indirectly access and manipulate the variable data contents. A pointer variable will hold the address of the data contents. If an asterisk “*” operator is present before the variable then that variable is referred as pointer variable. Operations that are allowed in a pointer: The math operation that is allowed for a pointer variable is “addition” and “subtraction”. Addition operation: The addition operation is performed using the “+”, “++”, “+=” operators. Subtraction operation: The subtraction operation is performed using the “-”, “--”, “-=” operators. The addition and subtraction operations are possible because the size of the pointer variable gets added or subtracted based on the data type it is being defined. Other math operations such as “multiplication” and “division” cannot be performed on a pointer variable because there is a possibility of garbage value or unallocated out range value being returned.

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Chapter 9, Problem 53RQE

Program Plan Intro

Pointer:

Pointer will allow the user to indirectly access and manipulate the variable data contents. A pointer variable will hold the address of the data contents. If an asterisk “*” operator is present before the variable then that variable is referred as pointer variable.

Operations that are allowed in a pointer:

The math operation that is allowed for a pointer variable is “addition” and “subtraction”.

Addition operation: The addition operation is performed using the “+”, “++”, “+=” operators.

Subtraction operation: The subtraction operation is performed using the “-”, “--”, “-=” operators.

The addition and subtraction operations are possible because the size of the pointer variable gets added or subtracted based on the data type it is being defined.

Other math operations such as “multiplication” and “division” cannot be performed on a pointer variable because there is a possibility of garbage value or unallocated out range value being returned.

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