char16_t_in.pass.cpp revision 22a74dcf50ff4338767607fa5a9d2916c2c85525 
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<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
23typedef std::codecvt<char16_t, char, std::mbstate_t> F;
24
25int 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;
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