strings(3)

#include "stdafx.h"
#include <cstdio>
#include <iostream>
#include <algorithm>
#include <string>
 
using namespace std;
 
void reverse(char * tmp) {
    char * end = tmp;
    while (*end) {
        end++;
    }
    end--;
    while (tmp < end) {
        char t = *tmp;
        *tmp = *end;
        *end = t;
        tmp++;
        end--;
    }
}
 
int main() {
    string s1 = "hello meme";
    char * tmp = &s1[0];
    reverse(tmp);
    //sort(s1.begin(), s1.end());
    printf("%s\n", s1.c_str());
    while (1) {}
    return 0;
}