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>; Example for pointer variable declaration: //definition of pointer variable int ptrvar; Where, int is the variable type. ptrvar is the pointer variable name. Pointer will allow the user to indirectly access and manipulate the data contents of the variable. A pointer variable will hold the address of the data contents. Note: When the symbol “&” is placed prior the pointer variable, it will hold address of the pointer variable. When the symbol “*” is placed prior the pointer variable, it will hold the value of the pointer variable.

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Chapter 9, Problem 30RQE

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>;

Example for pointer variable declaration:

//definition of pointer variable

int ptrvar;

Where,

int is the variable type.

ptrvar is the pointer variable name.

Pointer will allow the user to indirectly access and manipulate the data contents of the variable. A pointer variable will hold the address of the data contents.

Note:

When the symbol “&” is placed prior the pointer variable, it will hold address of the pointer variable.

When the symbol “*” is placed prior the pointer variable, it will hold the value of the pointer variable.

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