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, c++11
11
12// <experimental/iterator>
13//
14// template <class _Delim, class _CharT = char, class _Traits = char_traits<_CharT>>
15//   class ostream_joiner;
16//
17//   ostream_joiner & operator*() noexcept
18//     returns *this;
19
20#include <experimental/iterator>
21#include <iostream>
22#include <cassert>
23
24#include "test_macros.h"
25
26namespace exp = std::experimental;
27
28template <class Delim, class CharT, class Traits>
29void test ( exp::ostream_joiner<Delim, CharT, Traits> &oj ) {
30    static_assert((noexcept(*oj)), "" );
31    exp::ostream_joiner<Delim, CharT, Traits> &ret = *oj;
32    assert( &ret == &oj );
33    }
34
35int main () {
36
37    { exp::ostream_joiner<char>         oj(std::cout, '8');                 test(oj); }
38    { exp::ostream_joiner<std::string>  oj(std::cout, std::string("9"));    test(oj); }
39    { exp::ostream_joiner<std::wstring> oj(std::cout, std::wstring(L"10")); test(oj); }
40    { exp::ostream_joiner<int>          oj(std::cout, 11);                  test(oj); }
41
42    { exp::ostream_joiner<char, wchar_t>         oj(std::wcout, '8');                 test(oj); }
43    { exp::ostream_joiner<std::string, wchar_t>  oj(std::wcout, std::string("9"));    test(oj); }
44    { exp::ostream_joiner<std::wstring, wchar_t> oj(std::wcout, std::wstring(L"10")); test(oj); }
45    { exp::ostream_joiner<int, wchar_t>          oj(std::wcout, 11);                  test(oj); }
46    }
47