C/string.h/memcmp

memcmp: compares the first count characters between buf1 and buf2

<source lang="cpp">

//Declaration: int memcmp(const void *buf1, const void *buf2, size_t count); //Return: returns an integer as follows:

                 < 0  :  buf1 is less than buf2 
                 0    :  buf1 is equal to buf2 
                 > 0 >:  buf1 is greater than buf2 
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
 int main(int argc, char *argv[])
 {
   int outcome, len, l1, l2;
   char *str = "asdf";
   char *str1 = "asdfasdf";
   /* find the length of shortest string */
   l1 = strlen(str);
   l2 = strlen(str1);
   len = l1 < l2 ? l1:l2;
   outcome = memcmp(str, str1, len);
   if(!outcome)
       printf("Equal");
   else if(outcome<0)
       printf("First less than second.");
   else
       printf("First greater than second.");
   return 0;
 }
        

/* Equal*/

      </source>