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// UNSUPPORTED: c++98, c++03
11
12// <istream>
13
14// template <class charT, class traits = char_traits<charT> >
15// class basic_istream;
16
17// basic_istream(basic_istream&& rhs);
18
19#include <istream>
20#include <cassert>
21
22template <class CharT>
23struct testbuf
24    : public std::basic_streambuf<CharT>
25{
26    testbuf() {}
27};
28
29template <class CharT>
30struct test_istream
31    : public std::basic_istream<CharT>
32{
33    typedef std::basic_istream<CharT> base;
34    test_istream(testbuf<CharT>* sb) : base(sb) {}
35
36    test_istream(test_istream&& s)
37        : base(std::move(s)) {}
38};
39
40int main()
41{
42    {
43        testbuf<char> sb;
44        test_istream<char> is1(&sb);
45        test_istream<char> is(std::move(is1));
46        assert(is1.rdbuf() == &sb);
47        assert(is1.gcount() == 0);
48        assert(is.gcount() == 0);
49        assert(is.rdbuf() == 0);
50        assert(is.tie() == 0);
51        assert(is.fill() == ' ');
52        assert(is.rdstate() == is.goodbit);
53        assert(is.exceptions() == is.goodbit);
54        assert(is.flags() == (is.skipws | is.dec));
55        assert(is.precision() == 6);
56        assert(is.getloc().name() == "C");
57    }
58    {
59        testbuf<wchar_t> sb;
60        test_istream<wchar_t> is1(&sb);
61        test_istream<wchar_t> is(std::move(is1));
62        assert(is1.gcount() == 0);
63        assert(is.gcount() == 0);
64        assert(is1.rdbuf() == &sb);
65        assert(is.rdbuf() == 0);
66        assert(is.tie() == 0);
67        assert(is.fill() == L' ');
68        assert(is.rdstate() == is.goodbit);
69        assert(is.exceptions() == is.goodbit);
70        assert(is.flags() == (is.skipws | is.dec));
71        assert(is.precision() == 6);
72        assert(is.getloc().name() == "C");
73    }
74}
75