wchar_t_in.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 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
23typedef std::codecvt<wchar_t, char, std::mbstate_t> F;
24
25int main()
26{
27    std::locale l = std::locale::classic();
28    const std::basic_string<F::extern_type> from("some text");
29    const std::basic_string<F::intern_type> expected(from.begin(), from.end());
30    std::basic_string<F::intern_type> to(from.size(), F::intern_type());
31    const F& f = std::use_facet<F>(l);
32    std::mbstate_t mbs = {0};
33    const F::extern_type* from_next = 0;
34    F::intern_type* to_next = 0;
35    F::result r = f.in(mbs, from.data(), from.data() + from.size(), from_next,
36                            &to[0], &to[0] + to.size(), to_next);
37    assert(r == F::ok);
38    assert(from_next - from.data() == from.size());
39    assert(to_next - to.data() == expected.size());
40    assert(to_next - to.data() == expected.size());
41    assert(to == expected);
42}
43