char s1[] = "Upper/LOWER.";
char s2[] = "mIXeD CaSe..";

/* counts bytes in string */
unsigned char strcnt (ptr)
 char *ptr;
{
 unsigned char i;
   
 i = 0;
 while (*ptr != 0) {
  ptr++;
  i++;
 }
 return(i);

}


main()
{

 unsigned char i;

  i = strcnt(s1);

  printf("Number of chars in '%s' is %d\n",s1,i);

}


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