如何将char字符串转换为wchar_t字符串？

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

std::wstring char_to_wchar_t(const std::string& str) {
    std::wstring_convert<std::codecvt_utf8<wchar_t>> converter;
    return converter.from_bytes(str);
}

int main() {
    std::string char_str = "Hello, World!";
    std::wstring wchar_t_str = char_to_wchar_t(char_str);
    std::wcout << wchar_t_str<< std::endl;
    return 0;
}