f5f2f77755
Some tests are marked as failing on platforms where the dylib does not provide the required exception classes. However, when testing with exceptions disabled, those tests shouldn't be marked as failing. llvm-svn: 353210
78 lines
1.5 KiB
C++
78 lines
1.5 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// UNSUPPORTED: c++98, c++03, c++11, c++14
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// XFAIL: dylib-has-no-bad_optional_access && !libcpp-no-exceptions
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// <optional>
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// constexpr T& optional<T>::value() &;
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#include <optional>
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#include <type_traits>
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#include <cassert>
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#include "test_macros.h"
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using std::optional;
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using std::bad_optional_access;
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struct X
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{
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X() = default;
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X(const X&) = delete;
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constexpr int test() const & {return 3;}
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int test() & {return 4;}
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constexpr int test() const && {return 5;}
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int test() && {return 6;}
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};
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struct Y
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{
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constexpr int test() & {return 7;}
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};
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constexpr int
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test()
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{
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optional<Y> opt{Y{}};
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return opt.value().test();
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}
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int main(int, char**)
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{
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{
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optional<X> opt; ((void)opt);
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ASSERT_NOT_NOEXCEPT(opt.value());
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ASSERT_SAME_TYPE(decltype(opt.value()), X&);
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}
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{
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optional<X> opt;
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opt.emplace();
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assert(opt.value().test() == 4);
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}
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#ifndef TEST_HAS_NO_EXCEPTIONS
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{
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optional<X> opt;
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try
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{
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(void)opt.value();
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assert(false);
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}
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catch (const bad_optional_access&)
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{
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}
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}
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#endif
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static_assert(test() == 7, "");
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return 0;
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}
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