// http://stackoverflow.com/questions/4804298/how-to-convert-wstring-into-string/18374698#comment29617780_18374698
#include <codecvt>
#include <locale>
#include <iostream>
 
int main()
{
  std::wstring_convert<std::codecvt_utf8<wchar_t>> converter;
 
  // utf-8 to wstring
  std::wstring multilingual = converter.from_bytes(u8"<abc абв αβγ 😂>");
  // wstring to utf-8 bytes
  std::cout << converter.to_bytes(multilingual) << std::endl;
}
 

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