Programming

/* String.h header series
	
	Comparison function

memcmp = return 0 if string equal  else return less or greater than value by comparing pointer first and pointer second

*/

#include<stdio.h>
#include<string.h>
#include<stdlib.h>
int main()
{
/*memcmp operation*/
int i;
char str[20];
char str2[20];
printf("Enter first string: ");
fgets(str,20,stdin);
printf("Enter second string: ");
fgets(str2,20,stdin);
fflush(stdin);
i = memcmp(str,str2,20);
if(i>0){
printf("%s greater than %s\n",str,str2);
}
else if(i<0)	{
	printf("%s greater than %s\n",str2,str);
}
else {   printf("Both are eqaul\n");  }
return 0;  
}

[root@apache ~]# ./mem
Enter first string: hello
Enter second string: hello
hello greater than hello

 
i = memcmp(str,str2,5);