1//===----------------------------------------------------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is dual licensed under the MIT and the University of Illinois Open
6// Source Licenses. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10// <locale>
11
12// wstring_convert<Codecvt, Elem, Wide_alloc, Byte_alloc>
13
14// byte_string to_bytes(Elem wchar);
15// byte_string to_bytes(const Elem* wptr);
16// byte_string to_bytes(const wide_string& wstr);
17// byte_string to_bytes(const Elem* first, const Elem* last);
18
19#include <locale>
20#include <codecvt>
21#include <cassert>
22
23int main()
24{
25    {
26        std::wstring_convert<std::codecvt_utf8<wchar_t> > myconv;
27        std::wstring ws(1, L'\x40003');
28        std::string bs = myconv.to_bytes(ws[0]);
29        assert(bs == "\xF1\x80\x80\x83");
30        bs = myconv.to_bytes(ws.c_str());
31        assert(bs == "\xF1\x80\x80\x83");
32        bs = myconv.to_bytes(ws);
33        assert(bs == "\xF1\x80\x80\x83");
34        bs = myconv.to_bytes(ws.data(), ws.data() + ws.size());
35        assert(bs == "\xF1\x80\x80\x83");
36        bs = myconv.to_bytes(L"");
37        assert(bs.size() == 0);
38    }
39}
40