/****************************************************************

DOCUMENTATION:

NAME :V.KARTHIEKEYAN

DATE :23.06.2021

DESCRIPTION :WAP to check your processor endianess

OUTPUT :./a.out

ENTER ANY NUMBER: 25

LITTLE ENDIAN SYSTEM

DO YOU WANT TO CONTINUE:n

****************************************************************/

#include<stdio.h>

int endian(unsigned int num,char *cptr);

int main()

{

char choice;

unsigned int num=0;

char *cptr;

cptr=(char *)&num;

printf("ENTER ANY NUMBER: ");

scanf("%d",&num);

endian(num,cptr);

printf("\nDO YOU WANT TO CONTINUE:");

scanf(" %c",&choice);

if( choice == 'Y' || choice == 'y' )

main();

return 0;

}

int endian(unsigned int num, char *cptr)

{

int check = 0xff & num; //take the first byte

if( check == *cptr ) //*cptr points to first byte

printf("LITTLE ENDIAN SYSTEM");

else //*cptr points to last byte

printf("BIG ENDIAN SYSTEM");

}