Thread: Pointer Issue?

Hi I'v been working through another tut and have hit an issue, the program compiles fine but then crashes after printing "This is a test". I'm presuming it's an issue to do with pointer's but could be wrong. Also, I know this may sound odd, but my OS system is 64 bit and I was wondering if this could effect it?

Code:

#include <iostream>
#include <cstring>
using namespace std;


int main() {
char str[] = "This is a test";
char *start, *end;
int len;
char t;


cout << "Original: " << str << endl;


len = strlen(str);


start = str;
end = &str[len-1];


while(start < end) {
            t = *start;
            *start = *end;
            *end = t;
            
            start++;
            end++;
            }
cout << "Reversed str: " << str << endl;  
             


system("pause");
return 0;
}

Edit: Whoops sorry for wasting your time it should be end--. Although I am still interested to know if theirs any difference writing for 64 bit rather 32 bit.