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Diffstat (limited to 'src/boost/libs/outcome/test/tests/issue0007.cpp')
-rw-r--r-- | src/boost/libs/outcome/test/tests/issue0007.cpp | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/src/boost/libs/outcome/test/tests/issue0007.cpp b/src/boost/libs/outcome/test/tests/issue0007.cpp new file mode 100644 index 000000000..ba698d2b1 --- /dev/null +++ b/src/boost/libs/outcome/test/tests/issue0007.cpp @@ -0,0 +1,81 @@ +/* Unit testing for outcomes +(C) 2013-2022 Niall Douglas <http://www.nedproductions.biz/> (5 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.hpp> +#include <boost/outcome/try.hpp> +#include <boost/test/unit_test.hpp> +#include <boost/test/unit_test_monitor.hpp> + +BOOST_OUTCOME_AUTO_TEST_CASE(issues_0007_test, "BOOST_OUTCOME_TRYV(expr) in a function whose return outcome's type has no default constructor fails to compile") +{ + using namespace BOOST_OUTCOME_V2_NAMESPACE; + struct udt // NOLINT + { + explicit udt(int /*unused*/) {} + // udt() = delete; + udt(const udt &) = default; + udt(udt &&) = default; + }; + { + auto f = []() -> result<udt> { + auto g = [] { return result<int>(5); }; + /* This fails because BOOST_OUTCOME_TRYV() returns a result<void> + which if it were valued void, would implicitly convert into a + default constructed udt which is not possible, hence the compile error. + */ + BOOST_OUTCOME_TRYV(g()); + return udt(5); + }; + (void) f(); + } + { + auto f = []() -> outcome<udt> { + auto g = [] { return outcome<int>(5); }; + /* This fails because BOOST_OUTCOME_TRYV() returns a result<void> + which if it were valued void, would implicitly convert into a + default constructed udt which is not possible, hence the compile error. + */ + BOOST_OUTCOME_TRYV(g()); + return udt(5); + }; + (void) f(); + } + { + auto f = []() -> outcome<udt> { + auto g = [] { return result<int>(5); }; + /* This fails because BOOST_OUTCOME_TRYV() returns a result<void> + which if it were valued void, would implicitly convert into a + default constructed udt which is not possible, hence the compile error. + */ + BOOST_OUTCOME_TRYV(g()); + return udt(5); + }; + (void) f(); + } +} |