C Program for array traversal using pointers

C program to get the array elements using pointers

This c program is to get all the array elements using pointers.

Initialized interger pointer ptr and assigned array first element reference, incremeted pointer in each iteration till reading last array element.

#include<stdio.h>                                                               
                                                                                
void main()                                                                     
{                                                                               
  int arr_list[] = {10, 8, 6, 4, 2, 1};                                         
  int *ptr;                                                                     
  for(ptr=&arr_list[0];ptr<=&arr_list[5];ptr++)                                 
  {                                                                             
    printf("%d\t", *ptr);                                                       
  }                                                                             
}  

Output:

$ cc array-traversal.c
$ ./a.out
10	8	6	4	2	1	

default array name provides the address of first array element instead of using &array_name[0].

#include<stdio.h>                                                            
                                                                                
void main()                                                                     
{                                                                               
  int arr_list[] = {10, 8, 6, 4, 2, 1};                                         
  int *ptr;                                                                     
  for(ptr=arr_list;ptr<=&arr_list[5];ptr++)                                     
  {                                                                             
    printf("%d\t", *ptr);                                                       
  }                                                                             
} 

Output:

$ cc array-traversal.c
$ ./a.out
10	8	6	4	2	1	

Another way of accessing array elements using pointers,

#include<stdio.h>                                                               
                                                                                
void main()                                                                     
{                                                                               
  int arr_list[] = {10, 8, 6, 4, 2, 1};                                         
  int i, *ptr;                                                                  
  for(ptr=arr_list,i=0;i<=5;i++)                                                
  {                                                                             
    printf("%d\t", ptr[i]);                                                     
  }                                                                             
}    

Output:

$ cc array-traversal.c
$ ./a.out
10	8	6	4	2	1	

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