Thread: confusing about pointer..

This program works properly but i got bit confused on some point...

Code:

#include <stdio.h>
   #include <stdlib.h>
   #define MAXSTRING 100

   int main(void) {

   char c ='a', *p, s[MAXSTRING];
   p = &c;
   printf("%c%c%c%c  ", *p, *p + 1, *p+2);
   strcpy(s, "ABC");
   printf("%s  %c%c %c\n", s, *s+6, *s+7, s+1);
   strcpy(s, "she sells sea shells by the seashore");
   p = s + 14;
   for (; *p != '\0'; ++p) {
   if ( *p == 'e')
     *p = 'E';
   if ( *p == ' ')
    *p = '\n';
 }
  printf("%s\n", s);
 return 0;
}

The output will be
abc ABC GHBC
.....
...
..
And if i made some changes on the char s that i remove the pointer

Code:

   strcpy(s, "ABC");
   printf("%s  %c%c%s\n", s,  s+6,  s+7,  s+1);

the output will be
ABC FGBC

here's the problem..it looks like the start counting with 1..issit true..n didn't it suppose to be same answer as above?I will appreciate everuthing if u guys help me...thanks

Code:

   strcpy(s, "ABC");
   printf("%s  %c%c%s\n", s,  s+6,  s+7,  s+1);

Your code above attempts to access the "garbage" after when the string "ABC" ends.s + 6 means to use pointer arithmetic and access 6 addresses after s which is undefined, same with s + 7.

oo..ok..Thanks anyway...