Pointer: Pointer, the name itself references the purpose of the pointer. Pointers point to a location in memory. Pointer is a special type of variable to store the address of the memory location, which can be accessed later. If an asterisk “” operator is present before the variable, then that variable is referred as pointer variable. It is also called as dereferencing or indirection operator. Pointer is just a type of variable that stores the addresses of other variables. Using pointers, we can access the address of a variable; the data stored in that variable can be retrieved. Syntax of pointer variable declaration: <variable-type> <variable-name>; Pointer to constant variable: Pointer to constants can be used in a situation when an address of a constant item is passed to a pointer such that no modification can be made to those variables. The data contents of the pointer cannot be changed, but the address of the pointer can be changed. Value of the pointer remains constant throughout the execution. The Syntax of Pointer to constant variable is given below: const <variable-type> <variable-name>; Example: const double pointer; In above statement, “pointer” is a pointer variable which is points to const double.

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Chapter 10, Problem 23RQE

Program Plan Intro

Pointer:

Pointer, the name itself references the purpose of the pointer. Pointers point to a location in memory.

Pointer is a special type of variable to store the address of the memory location, which can be accessed later.

If an asterisk “” operator is present before the variable, then that variable is referred as pointer variable.

It is also called as dereferencing or indirection operator.

Pointer is just a type of variable that stores the addresses of other variables.

Using pointers, we can access the address of a variable; the data stored in that variable can be retrieved.

Syntax of pointer variable declaration:

<variable-type> <variable-name>;

Pointer to constant variable:

Pointer to constants can be used in a situation when an address of a constant item is passed to a pointer such that no modification can be made to those variables.

The data contents of the pointer cannot be changed, but the address of the pointer can be changed.

Value of the pointer remains constant throughout the execution.

The Syntax of Pointer to constant variable is given below:

const <variable-type> <variable-name>;

Example:

const double pointer;

In above statement, “pointer” is a pointer variable which is points to const double.

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