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Created Jul 21, 2020
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#include <codecvt>
#include <iostream>
#include <locale>
#include <string>
int main()
using namespace std::literals::string_literals;
std::string s = "hello world"s;
std::u16string s16 = u"hello world"s;
std::u32string s32 = U"hello world"s;
std::wstring ws = L"hello world"s;
std::cout << s << std::endl;
std::wstring_convert<std::codecvt_utf8_utf16<char16_t>, char16_t> utf16conv;
std::cout << utf16conv.to_bytes(s16) << std::endl;
std::wstring_convert<std::codecvt_utf8_utf16<char32_t>, char32_t> utf32conv;
std::cout << utf32conv.to_bytes(s32) << std::endl;
std::wcout << ws << std::endl;
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