Utf8loadingCpp.cpp

#include <iostream>
#include <fstream> 
#include <string>
#include <codecvt>

// Created by Hperigo
// original articles:
// 1. http://www.thradams.com/codeblog/utf8.htm
// 2. http://stackoverflow.com/questions/4358870/convert-wstring-to-string-encoded-in-utf-8

using namespace std;

// convert UTF-8 string to wstring
std::wstring utf8_to_wstring (const std::string& str)
{
    std::wstring_convert<std::codecvt_utf8<wchar_t>> myconv;
    return myconv.from_bytes(str);
}

// convert wstring to UTF-8 string
std::string wstring_to_utf8 (const std::wstring& str)
{
    std::wstring_convert<std::codecvt_utf8<wchar_t>> myconv;
    return myconv.to_bytes(str);
}



int main(int argc, const char * argv[]) {
    // insert code here...

    // writing
    {
        std::locale ulocale(locale(), new codecvt_utf8<wchar_t>) ;
        std::wofstream ofs("test.txt");
        ofs.imbue(ulocale);
        ofs << L"maçã"; //apple in portuguese
        
    }
    
    // reading
    {
        std::locale ulocale(locale(), new codecvt_utf8<wchar_t>) ;
        std::wifstream ifs("test.txt");
        ifs.imbue(ulocale);
        std::wstring ws;
        std::getline(ifs, ws);
        
        std::string str = wstring_to_utf8(ws);
        
        cout << wstring_to_utf8(ws) << std::endl;
    }
    
    return 0;
}