wchar_t_out.pass.cpp revision bc8d3f97eb5c958007f2713238472e0c1c8fe02c 
1//===----------------------------------------------------------------------===//
2//
3// ��������������������The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. 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
23typedef std::codecvt<wchar_t, char, std::mbstate_t> F;
24
25int 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;
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;
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(to.data() == std::string("some\0text", from.size()));
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;
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