C/string.h/strncmp

 
//Declaration:  int strncmp(const char *str1, const char *str2, size_t count); 
//Return:       returns an integer as follows: 
                <0  :  str1 is less than str2 
                0   :  str1 is equal to str2 
                >0  :  str1 is greater than str2 
  #include <stdio.h>
  #include <string.h>
  #include <stdlib.h>
  int main(int argc, char *argv[])
  {
    if(!strncmp("asdfasdfasdfasdf", "asdfasdffdsaasdf", 8))
      printf("The strings are the same.\n");
    return 0;
  }
         
/*
The strings are the same.
*/