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diff --git a/src/boost/libs/outcome/test/tests/issue0010.cpp b/src/boost/libs/outcome/test/tests/issue0010.cpp
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+/* Unit testing for outcomes
+(C) 2013-2020 Niall Douglas <http://www.nedproductions.biz/> (9 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_0010_test, "Expected's operator->(), operator*() and .error() throw exceptions when they should not")
+{
+ using namespace BOOST_OUTCOME_V2_NAMESPACE;
+ const char *a = "hi", *b = "bye";
+ struct udt1 // NOLINT
+ {
+ const char *_v{nullptr};
+ udt1() = default;
+ constexpr explicit udt1(const char *v) noexcept : _v(v) {}
+ constexpr udt1(udt1 &&o) noexcept : _v(o._v) { o._v = nullptr; }
+ udt1(const udt1 &) = default;
+ constexpr udt1 &operator=(udt1 &&o) noexcept
+ {
+ _v = o._v;
+ o._v = nullptr;
+ return *this;
+ }
+ udt1 &operator=(const udt1 &) = delete;
+ constexpr const char *operator*() const noexcept { return _v; }
+ };
+ struct udt2 // NOLINT
+ {
+ const char *_v{nullptr};
+ udt2() = default;
+ constexpr explicit udt2(const char *v) noexcept : _v(v) {}
+ constexpr udt2(udt2 &&o) noexcept : _v(o._v) { o._v = nullptr; }
+ udt2(const udt2 &) = default;
+ constexpr udt2 &operator=(udt2 &&o) noexcept
+ {
+ _v = o._v;
+ o._v = nullptr;
+ return *this;
+ }
+ udt1 &operator=(const udt1 &) = delete;
+ constexpr const char *operator*() const noexcept { return _v; }
+ };
+ result<udt1, udt2> p(udt1{a});
+ result<udt1, udt2> n(udt2{b});
+ // State check
+ BOOST_CHECK(p.has_value());
+ BOOST_CHECK(!n.has_value());
+ // These should behave as expected (!)
+ // BOOST_CHECK_NO_THROW(p.value());
+ // BOOST_CHECK_NO_THROW(n.value());
+ // And state is not destroyed
+ BOOST_CHECK(p.has_value() && *p.assume_value() == a);
+ BOOST_CHECK(!n.has_value() && *n.assume_error() == b);
+ // LEWG Expected provides rvalue ref semantics for operator*(), error() and error_or()
+ udt1 a1(std::move(p.assume_value()));
+ BOOST_CHECK(*a1 == a);
+ BOOST_CHECK(*p.assume_value() == nullptr);
+ udt2 e2(std::move(n).assume_error());
+ BOOST_CHECK(*e2 == b);
+ BOOST_CHECK(*n.assume_error() == nullptr); // NOLINT
+}