| /* |
| * Copyright Andrey Semashev 2007 - 2013. |
| * Distributed under the Boost Software License, Version 1.0. |
| * (See accompanying file LICENSE_1_0.txt or copy at |
| * http://www.boost.org/LICENSE_1_0.txt) |
| */ |
| /*! |
| * \file explicit_operator_bool_noexcept.cpp |
| * \author Andrey Semashev |
| * \date 26.04.2014 |
| * |
| * \brief This test checks that explicit operator bool is noexcept when possible. |
| */ |
| |
| #define BOOST_TEST_MODULE explicit_operator_bool_noexcept |
| |
| #include <boost/config.hpp> |
| |
| #if !defined(BOOST_NO_CXX11_NOEXCEPT) |
| |
| #include <boost/detail/lightweight_test.hpp> |
| #include <boost/utility/explicit_operator_bool.hpp> |
| |
| namespace { |
| |
| struct checkable1 |
| { |
| BOOST_EXPLICIT_OPERATOR_BOOL() |
| bool operator! () const |
| { |
| return false; |
| } |
| }; |
| |
| struct checkable2 |
| { |
| BOOST_CONSTEXPR_EXPLICIT_OPERATOR_BOOL() |
| BOOST_CONSTEXPR bool operator! () const |
| { |
| return false; |
| } |
| }; |
| |
| struct noexcept_checkable1 |
| { |
| BOOST_EXPLICIT_OPERATOR_BOOL_NOEXCEPT() |
| bool operator! () const noexcept |
| { |
| return false; |
| } |
| }; |
| |
| struct noexcept_checkable2 |
| { |
| BOOST_CONSTEXPR_EXPLICIT_OPERATOR_BOOL() |
| BOOST_CONSTEXPR bool operator! () const noexcept |
| { |
| return false; |
| } |
| }; |
| |
| } // namespace |
| |
| int main(int, char*[]) |
| { |
| checkable1 val1; |
| checkable2 val2; |
| |
| noexcept_checkable1 noexcept_val1; |
| noexcept_checkable2 noexcept_val2; |
| |
| BOOST_TEST(!noexcept(static_cast< bool >(val1))); |
| // constexpr functions are implicitly noexcept |
| BOOST_TEST(noexcept(static_cast< bool >(val2))); |
| |
| BOOST_TEST(noexcept(static_cast< bool >(noexcept_val1))); |
| BOOST_TEST(noexcept(static_cast< bool >(noexcept_val2))); |
| |
| return boost::report_errors(); |
| } |
| |
| #else |
| |
| int main(int, char*[]) |
| { |
| return 0; |
| } |
| |
| #endif |