Pointers in c programming with examples pdf
- how to declare pointers in c
- how to declare pointers in cpp
- how to declare pointer in c plus plus
- how to declare pointer in c with example
Types of pointers in c!
Pointer to pointer in c
Pointers in C
What is a Pointer in C?
C pointer is the derived data type that is used to store the address of another variable and can also be used to access and manipulate the variable's data stored at that location.
The pointers are considered as derived data types.
With pointers, you can access and modify the data located in the memory, pass the data efficiently between the functions, and create dynamic data structures like linked lists, trees, and graphs.
Pointer Declaration
To declare a pointer, use the dereferencing operator (*) followed by the data type.
Syntax
The general form of a pointer variable declaration is −
type *var-name;Here, type is the pointer's base type; it must be a valid C data type and var-name is the name of the pointer variable.
The asterisk * used to declare a pointer is the same asterisk used for multiplication. However, in this statement the asterisk is being used to designate a variable as a pointer.
Example of Valid Pointer Variable Declarations
Take a look at some of the valid pointer declarations −
int *ip; /* poin- how to declare pointer in c language
- how to declare multiple pointers in c