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+/* Unit testing for outcomes
+(C) 2013-2019 Niall Douglas <http://www.nedproductions.biz/> (2 commits)
+
+
+Boost Software License - Version 1.0 - August 17th, 2003
+
+Permission is hereby granted, free of charge, to any person or organization
+obtaining a copy of the software and accompanying documentation covered by
+this license (the "Software") to use, reproduce, display, distribute,
+execute, and transmit the Software, and to prepare derivative works of the
+Software, and to permit third-parties to whom the Software is furnished to
+do so, all subject to the following:
+
+The copyright notices in the Software and this entire statement, including
+the above license grant, this restriction and the following disclaimer,
+must be included in all copies of the Software, in whole or in part, and
+all derivative works of the Software, unless such copies or derivative
+works are solely in the form of machine-executable object code generated by
+a source language processor.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
+SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
+FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
+*/
+
+#include <boost/outcome/outcome.hpp>
+#include <boost/test/unit_test.hpp>
+#include <boost/test/unit_test_monitor.hpp>
+
+BOOST_OUTCOME_AUTO_TEST_CASE(issues_0140_result, "Construction of non copy constructible value_type fails to not compile")
+{
+ namespace out = BOOST_OUTCOME_V2_NAMESPACE;
+
+ enum op
+ {
+ constructed,
+ moved,
+ copied
+ };
+ struct NotCopyMoveConstructible
+ {
+ op v{op::constructed};
+ NotCopyMoveConstructible() = default;
+ NotCopyMoveConstructible(const NotCopyMoveConstructible &o) = delete;
+ NotCopyMoveConstructible(NotCopyMoveConstructible &&) = delete;
+ NotCopyMoveConstructible &operator=(const NotCopyMoveConstructible &) = delete;
+ NotCopyMoveConstructible &operator=(NotCopyMoveConstructible &&) = delete;
+ ~NotCopyMoveConstructible() = default;
+ };
+ struct NotMoveConstructible
+ {
+ op v{op::constructed};
+ NotMoveConstructible() = default;
+ NotMoveConstructible(const NotMoveConstructible & /*unused*/)
+ : v(op::copied)
+ {
+ }
+ NotMoveConstructible(NotMoveConstructible &&) = delete;
+ NotMoveConstructible &operator=(const NotMoveConstructible &) = delete;
+ NotMoveConstructible &operator=(NotMoveConstructible &&) = delete;
+ ~NotMoveConstructible() = default;
+ };
+ struct NotCopyConstructible
+ {
+ op v{op::constructed};
+ NotCopyConstructible() = default;
+ NotCopyConstructible(NotCopyConstructible && /*unused*/) noexcept : v(op::moved) {}
+ NotCopyConstructible(const NotCopyConstructible & /*unused*/) = delete;
+ NotCopyConstructible &operator=(const NotCopyConstructible &) = delete;
+ NotCopyConstructible &operator=(NotCopyConstructible &&) = delete;
+ ~NotCopyConstructible() = default;
+ };
+
+ // Uncopyable and immovable items should be neither copyable nor moveable
+ static_assert(!std::is_copy_constructible<out::result<NotCopyMoveConstructible>>::value, "result<NotCopyMoveConstructible> is copy constructible!");
+ static_assert(!std::is_move_constructible<out::result<NotCopyMoveConstructible>>::value, "result<NotCopyMoveConstructible> is move constructible!");
+ static_assert(!std::is_convertible<const NotCopyMoveConstructible &, NotCopyMoveConstructible>::value, "");
+ static_assert(!std::is_convertible<NotCopyMoveConstructible &&, NotCopyMoveConstructible>::value, "");
+ static_assert(!std::is_constructible<out::result<NotCopyMoveConstructible>, const NotCopyMoveConstructible &>::value, "result<NotCopyMoveConstructible> is constructible from const NotCopyMoveConstructible&!");
+ static_assert(!std::is_constructible<out::result<NotCopyMoveConstructible>, NotCopyMoveConstructible &&>::value, "result<NotCopyMoveConstructible> is constructible from NotCopyMoveConstructible&&!");
+
+ // Immovable items should fall back to copy
+ static_assert(!std::is_move_constructible<NotMoveConstructible>::value, "NotMoveConstructible is move constructible!");
+ static_assert(std::is_move_constructible<out::result<NotMoveConstructible>>::value, "result<NotMoveConstructible> is not move constructible!");
+ static_assert(std::is_constructible<out::result<NotMoveConstructible>, const NotMoveConstructible &>::value, "result<NotMoveConstructible> is not constructible from NotMoveConstructible&&!");
+
+ // Uncopyable items should never move (this was the bug report)
+ static_assert(!std::is_copy_constructible<out::result<NotCopyConstructible>>::value, "result<NotCopyConstructible> is copy constructible!");
+ static_assert(!std::is_constructible<out::result<NotCopyConstructible>, const NotCopyConstructible &>::value, "result<NotCopyConstructible> is constructible from const NotCopyConstructible&!");
+
+ BOOST_CHECK(true);
+}