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 // <codecvt>
11
12 // template <class Elem, unsigned long Maxcode = 0x10ffff,
13 // codecvt_mode Mode = (codecvt_mode)0>
14 // class codecvt_utf16
15 // : public codecvt<Elem, char, mbstate_t>
16 // {
17 // // unspecified
18 // };
19
20 // result
21 // unshift(stateT& state,
22 // externT* to, externT* to_end, externT*& to_next) const;
23
24 #include <codecvt>
25 #include <cassert>
26
main()27 int main()
28 {
29 {
30 typedef std::codecvt_utf16<wchar_t> C;
31 C c;
32 char n[4] = {0};
33 std::mbstate_t m;
34 char* np = nullptr;
35 std::codecvt_base::result r = c.unshift(m, n, n+4, np);
36 assert(r == std::codecvt_base::noconv);
37 }
38 {
39 typedef std::codecvt_utf16<char16_t> C;
40 C c;
41 char n[4] = {0};
42 std::mbstate_t m;
43 char* np = nullptr;
44 std::codecvt_base::result r = c.unshift(m, n, n+4, np);
45 assert(r == std::codecvt_base::noconv);
46 }
47 {
48 typedef std::codecvt_utf16<char32_t> C;
49 C c;
50 char n[4] = {0};
51 std::mbstate_t m;
52 char* np = nullptr;
53 std::codecvt_base::result r = c.unshift(m, n, n+4, np);
54 assert(r == std::codecvt_base::noconv);
55 }
56 }
57