UTF32 版 stringstream

utf32-string-stream.cpp

#include <iostream>
#include <sstream>
#include <string>
#include <locale>
#include <codecvt>

using w32stringstream = std::basic_stringstream<char32_t>;

int main()
{
    std::wstring_convert<std::codecvt_utf8<char32_t>, char32_t> converter;
    
    std::string u8str = u8"あいうえお";
    std::u32string u32str = converter.from_bytes(u8str);
    
    std::cout << "u32str = ";
    for (auto c : u32str)
    {
        std::cout << c << " ";
    }
    std::cout << std::endl;
    
    w32stringstream ss;
    
    ss << u32str;
    
    std::u32string foo = ss.str();
    
    std::cout << "foo = ";
    for (auto c : foo)
    {
        std::cout << c << " ";
    }
    std::cout << std::endl;
    
    return 0;
}