| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // <ios> |
| |
| // template <class charT, class traits> class basic_ios |
| |
| // operator unspecified-bool-type() const; |
| |
| #include <ios> |
| #include <type_traits> |
| #include <cassert> |
| |
| #include "test_macros.h" |
| |
| int main(int, char**) |
| { |
| std::ios ios(0); |
| assert(static_cast<bool>(ios) == !ios.fail()); |
| ios.setstate(std::ios::failbit); |
| assert(static_cast<bool>(ios) == !ios.fail()); |
| static_assert((!std::is_convertible<std::ios, void*>::value), ""); |
| static_assert((!std::is_convertible<std::ios, int>::value), ""); |
| static_assert((!std::is_convertible<std::ios const&, int>::value), ""); |
| #if TEST_STD_VER >= 11 |
| static_assert((!std::is_convertible<std::ios, bool>::value), ""); |
| #endif |
| |
| return 0; |
| } |