// Pantea Aria

// pointers and strings

#include <stdio.h>

int main() {
    char str[] = "Hello World";
    // make a pointer *s to this string
    char *s = str;
    // char *s = &str[0];
    
    // print out each character
    printf("str is %s\n", str);
    printf ("str char by char:");
    int i = 0;
    while(s[i]) {
        putchar(s[i]);   //putchar(s[i]);
        i++;
    }
    printf("\n");

    printf("using the pointer %s", s);

    printf("derefrencing char by char:");
    i = 0;
    while (*(s + i)) {
        putchar(*(s + i));   // putchar(*s[i]);
        i++;
    } 
    printf("\n");
    // do not change str
        
    
    // print out the address of the string 
    printf("the address of str is %p\n", str);
    printf("The address of str is %p\n", s);
    
    // print out the address of where 'W' is stored
    printf ("Address of W is %p and the value is %c\n", &str[6], str[6]);
    
    // can you move s to point to 'W' and not 'H'? how?
    s = s + 6;
    printf ("s is now %p\n", s);
    
    
    // Can I move str to point to 'W' and not 'H'???  NO pls don't
            
    return 0;
}