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<char, char, mbstate_t>
13
14 // result unshift(stateT& state,
15 // externT* to, externT* to_end, externT*& to_next) const;
16
17 #include <locale>
18 #include <string>
19 #include <vector>
20 #include <cassert>
21
22 typedef std::codecvt<char, char, std::mbstate_t> F;
23
main()24 int main()
25 {
26 std::locale l = std::locale::classic();
27 std::vector<char> to(3);
28 const F& f = std::use_facet<F>(l);
29 std::mbstate_t mbs = {0};
30 char* to_next = 0;
31 assert(f.unshift(mbs, to.data(), to.data() + to.size(), to_next) == F::noconv);
32 assert(to_next == to.data());
33 }
34