1//===----------------------------------------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9// Because we don't have a functioning decltype in C++03
10// UNSUPPORTED: c++03
11
12// UNSUPPORTED: no-localization
13
14// <memory>
15
16// unique_ptr
17
18// template<class CharT, class Traits, class Y, class D>
19// basic_ostream<CharT, Traits>&
20// operator<<(basic_ostream<CharT, Traits>& os, const unique_ptr<Y, D>& p);
21
22// -?- Remarks: This function shall not participate in overload resolution unless os << p.get() is a valid expression.
23
24#include <memory>
25#include <sstream>
26#include <cassert>
27
28#include "min_allocator.h"
29#include "deleter_types.h"
30
31int main(int, char**)
32{
33 std::unique_ptr<int, PointerDeleter<int>> p;
34 std::ostringstream os;
35 os << p; // expected-error {{invalid operands to binary expression}}
36
37 return 0;
38}
39

source code of libcxx/test/std/utilities/memory/unique.ptr/unique.ptr.special/io.verify.cpp