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4806bce5a8
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. git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@353210 91177308-0d34-0410-b5e6-96231b3b80d8
55 lines
1.4 KiB
C++
55 lines
1.4 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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//
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// template <class T>
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// constexpr optional<decay_t<T>> make_optional(T&& v);
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#include <optional>
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#include <string>
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#include <memory>
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#include <cassert>
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#include "test_macros.h"
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int main(int, char**)
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{
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using std::optional;
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using std::make_optional;
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{
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int arr[10]; ((void)arr);
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ASSERT_SAME_TYPE(decltype(make_optional(arr)), optional<int*>);
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}
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{
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constexpr auto opt = make_optional(2);
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ASSERT_SAME_TYPE(decltype(opt), const optional<int>);
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static_assert(opt.value() == 2);
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}
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{
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optional<int> opt = make_optional(2);
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assert(*opt == 2);
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}
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{
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std::string s("123");
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optional<std::string> opt = make_optional(s);
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assert(*opt == s);
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}
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{
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std::unique_ptr<int> s(new int(3));
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optional<std::unique_ptr<int>> opt = make_optional(std::move(s));
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assert(**opt == 3);
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assert(s == nullptr);
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}
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return 0;
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}
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