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| author | Eric Fiselier <eric@efcs.ca> | 2017-03-30 19:43:50 +0000 |
|---|---|---|
| committer | Eric Fiselier <eric@efcs.ca> | 2017-03-30 19:43:50 +0000 |
| commit | d3209f932f73087c33ccae4b7e7403ca4ad94d28 (patch) | |
| tree | a4d4ecd1a700f0e28d87ac8a2c815673e48f4544 /libcxx/test | |
| parent | 21e8ce398d21f0d89c8c5a52d077305dbf68543a (diff) | |
| download | bcm5719-llvm-d3209f932f73087c33ccae4b7e7403ca4ad94d28.tar.gz bcm5719-llvm-d3209f932f73087c33ccae4b7e7403ca4ad94d28.zip | |
Implement LWG 2842 - optional(U&&) needs to SFINAE on decay_t<in_place_t>
llvm-svn: 299100
Diffstat (limited to 'libcxx/test')
| -rw-r--r-- | libcxx/test/std/utilities/optional/optional.object/optional.object.ctor/U.pass.cpp | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/libcxx/test/std/utilities/optional/optional.object/optional.object.ctor/U.pass.cpp b/libcxx/test/std/utilities/optional/optional.object/optional.object.ctor/U.pass.cpp index 4020d70a46f..d068fbc2db7 100644 --- a/libcxx/test/std/utilities/optional/optional.object/optional.object.ctor/U.pass.cpp +++ b/libcxx/test/std/utilities/optional/optional.object/optional.object.ctor/U.pass.cpp @@ -35,6 +35,11 @@ struct ExplicitThrow constexpr explicit ExplicitThrow(int x) { if (x != -1) TEST_THROW(6);} }; +struct ImplicitAny { + template <class U> + constexpr ImplicitAny(U&&) {} +}; + template <class To, class From> constexpr bool implicit_conversion(optional<To>&& opt, const From& v) @@ -79,6 +84,15 @@ void test_implicit() using T = TestTypes::TestType; assert(implicit_conversion<T>(3, T(3))); } + { + using O = optional<ImplicitAny>; + static_assert(!test_convertible<O, std::in_place_t>(), ""); + static_assert(!test_convertible<O, std::in_place_t&>(), ""); + static_assert(!test_convertible<O, const std::in_place_t&>(), ""); + static_assert(!test_convertible<O, std::in_place_t&&>(), ""); + static_assert(!test_convertible<O, const std::in_place_t&&>(), ""); + + } #ifndef TEST_HAS_NO_EXCEPTIONS { try { |
