std::wbuffer_convert<Codecvt,Elem,Tr>:: wbuffer_convert

#include <codecvt>
#include <iostream>
#include <locale>
#include <sstream>
int main()
{
    // Envolver un flujo de cadena UTF-8 en un wbuffer_convert UCS4
    std::stringbuf utf8buf("z\u00df\u6c34\U0001f34c");
                       // o "\x7a\xc3\x9f\xe6\xb0\xb4\xf0\x9f\x8d\x8c"
                       // o u8"zß水🍌"
    std::wbuffer_convert<std::codecvt_utf8<wchar_t>> conv_in(&utf8buf);
    std::wistream ucsbuf(&conv_in);
    std::cout << "Leyendo desde un stringbuf UTF-8 mediante wbuffer_convert: "
              << std::hex << std::showbase;
    for (wchar_t c; ucsbuf.get(c);)
        std::cout << static_cast<std::wint_t>(c) << ' ';
    // Envolver un std::cout compatible con UTF-8 en un wbuffer_convert UCS4 para enviar datos UCS4
    std::wbuffer_convert<std::codecvt_utf8<wchar_t>> conv_out(std::cout.rdbuf());
    std::wostream out(&conv_out);
    std::cout << "\nEnviando datos UCS4 a std::cout mediante wbuffer_convert: ";
    out << L"z\u00df\u6c34\U0001f34c\n";
}