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<wchar_t, char, mbstate_t>
13
14 // result out(stateT& state,
15 // const internT* from, const internT* from_end, const internT*& from_next,
16 // externT* to, externT* to_end, externT*& to_next) const;
17
18 #include <locale>
19 #include <string>
20 #include <vector>
21 #include <cassert>
22
23 typedef std::codecvt<wchar_t, char, std::mbstate_t> F;
24
main()25 int main()
26 {
27 std::locale l = std::locale::classic();
28 const F& f = std::use_facet<F>(l);
29 {
30 const std::basic_string<F::intern_type> from(L"some text");
31 std::vector<char> to(from.size()+1);
32 std::mbstate_t mbs = {0};
33 const F::intern_type* from_next = 0;
34 char* to_next = 0;
35 F::result r = f.out(mbs, from.data(), from.data() + from.size(), from_next,
36 to.data(), to.data() + to.size(), to_next);
37 assert(r == F::ok);
38 assert(from_next - from.data() == from.size());
39 assert(to_next - to.data() == from.size());
40 assert(to.data() == std::string("some text"));
41 }
42 {
43 std::basic_string<F::intern_type> from(L"some text");
44 from[4] = '\0';
45 std::vector<char> to(from.size()+1);
46 std::mbstate_t mbs = {0};
47 const F::intern_type* from_next = 0;
48 char* to_next = 0;
49 F::result r = f.out(mbs, from.data(), from.data() + from.size(), from_next,
50 to.data(), to.data() + to.size(), to_next);
51 assert(r == F::ok);
52 assert(from_next - from.data() == from.size());
53 assert(to_next - to.data() == from.size());
54 assert(memcmp(to.data(), "some\0text", from.size()) == 0);
55 }
56 {
57 std::basic_string<F::intern_type> from(L"some text");
58 std::vector<char> to(from.size()-1);
59 std::mbstate_t mbs = {0};
60 const F::intern_type* from_next = 0;
61 char* to_next = 0;
62 F::result r = f.out(mbs, from.data(), from.data() + from.size(), from_next,
63 to.data(), to.data() + to.size()-1, to_next);
64 assert(r == F::partial);
65 assert(from_next - from.data() == to.size()-1);
66 assert(to_next - to.data() == to.size()-1);
67 assert(to.data() == std::string("some te"));
68 }
69 }
70