How can I cin and cout some unicode text?

Question

I ask a code snippet which cin a unicode text, concatenates another unicode one to the first unicode text and the cout the result.

P.S. This code will help me to solve another bigger problem with unicode. But before the key thing is to accomplish what I ask.

ADDED: BTW I can't write in the command line any unicode symbol when I run the executable file. How I should do that?

Answer 1

I had a similar problem in the past, in my case imbue and sync_with_stdio did the trick. Try this:

#include <iostream>
#include <locale>
#include <string>

using namespace std;

int main() {
    ios_base::sync_with_stdio(false);
    wcin.imbue(locale("en_US.UTF-8"));
    wcout.imbue(locale("en_US.UTF-8"));

    wstring s;
    wstring t(L" la Polynésie française");

    wcin >> s;
    wcout << s << t << endl;
    return 0;
}