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 // template <> class codecvt<char16_t, char, mbstate_t>
13 
14 // result in(stateT& state,
15 //           const externT* from, const externT* from_end, const externT*& from_next,
16 //           internT* to, internT* to_end, internT*& to_next) const;
17 
18 #include <locale>
19 #include <string>
20 #include <vector>
21 #include <cassert>
22 
23 typedef std::codecvt<char16_t, char, std::mbstate_t> F;
24 
25 int main()
26 {
27     std::locale l = std::locale::classic();
28     const char from[] = "some text";
29     F::intern_type to[9];
30     const F& f = std::use_facet<F>(l);
31     std::mbstate_t mbs = {0};
32     const char* from_next = 0;
33     F::intern_type* to_next = 0;
34     assert(f.in(mbs, from, from + 9, from_next,
35                      to, to + 9, to_next) == F::ok);
36     assert(from_next - from == 9);
37     assert(to_next - to == 9);
38     for (unsigned i = 0; i < 9; ++i)
39         assert(to[i] == from[i]);
40 }
41