/*  File: quicker.c
    Quicker ways to access the characters in a string.
*/
#include <stdio.h>
#include "genlib.h"
#include "simpio.h"
#include "strlib.h"

main() {
   string str ;
   char c ;
   int i, length ;

   str = "this line is all in upper case" ;

   /* This is a fast way */
   printf("Method 1: ") ;

   for (i = 0 ; str[i] != '\0' ; i++) {
      c = str[i] ;
      c = toupper(c) ;
      printf("%c", c) ;
   }
   printf("\n\n") ; 

   /* This is slower */ 
   printf("Method 2: ") ;

   length = StringLength(str) ;
   for (i = 0 ; i < length ; i++) {
      c = IthChar(str,i) ;
      c = toupper(c) ;
      printf("%c", c) ;
   }
   printf("\n\n") ; 

   /* This is the slowest */ 
   printf("Method 3: ") ;

   for (i = 0 ; i < StringLength(str) ; i++) {
      c = IthChar(str,i) ;
      c = toupper(c) ;
      printf("%c", c) ;
   }
   printf("\n\n") ; 
}