| 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 | // <ios> |
| 10 | |
| 11 | // template <class charT, class traits> class basic_ios |
| 12 | |
| 13 | // operator unspecified-bool-type() const; |
| 14 | |
| 15 | #include <ios> |
| 16 | #include <type_traits> |
| 17 | #include <cassert> |
| 18 | |
| 19 | #include "test_macros.h" |
| 20 | |
| 21 | int main(int, char**) |
| 22 | { |
| 23 | std::ios ios(0); |
| 24 | assert(static_cast<bool>(ios) == !ios.fail()); |
| 25 | ios.setstate(std::ios::failbit); |
| 26 | assert(static_cast<bool>(ios) == !ios.fail()); |
| 27 | static_assert((!std::is_convertible<std::ios, int>::value), "" ); |
| 28 | static_assert((!std::is_convertible<std::ios const&, int>::value), "" ); |
| 29 | #if TEST_STD_VER >= 11 |
| 30 | static_assert(!std::is_convertible<std::ios, void*>::value, "" ); |
| 31 | static_assert(!std::is_convertible<std::ios, bool>::value, "" ); |
| 32 | #else |
| 33 | static_assert(std::is_convertible<std::ios, void*>::value, "" ); |
| 34 | static_assert(std::is_convertible<std::ios, bool>::value, "" ); |
| 35 | (void)(ios == 0); // SPEC2006 apparently relies on this to compile |
| 36 | #endif |
| 37 | |
| 38 | return 0; |
| 39 | } |
| 40 | |