#include <iostream>
#include <string>
#include <algorithm>
#include <vector>
#include <string.h>
 
using namespace std;
 
void func(string * str)
{
    char ch[16] = { 0 };
    reverse(str->begin(), str->end());
    memcpy( ch, str->c_str(), 16 ); // charにする縛りでもあるの？？
    *str = static_cast<string>(ch);
}
 
int main(void)
{
    string str("pop'n candy!");
    cout << str << endl;
    func( &str );
    cout << str << endl;
 
    return 0;
}
 

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