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 // wide_string from_bytes(char byte);
15 // wide_string from_bytes(const char* ptr);
16 // wide_string from_bytes(const byte_string& str);
17 // wide_string from_bytes(const char* first, const char* last);
18 
19 #include <locale>
20 #include <codecvt>
21 #include <cassert>
22 
main()23 int main()
24 {
25     {
26         std::wstring_convert<std::codecvt_utf8<wchar_t> > myconv;
27         std::string bs("\xF1\x80\x80\x83");
28         std::wstring ws = myconv.from_bytes('a');
29         assert(ws == L"a");
30         ws = myconv.from_bytes(bs.c_str());
31         assert(ws == L"\x40003");
32         ws = myconv.from_bytes(bs);
33         assert(ws == L"\x40003");
34         ws = myconv.from_bytes(bs.data(), bs.data() + bs.size());
35         assert(ws == L"\x40003");
36         ws = myconv.from_bytes("");
37         assert(ws.size() == 0);
38     }
39 }
40