diff options
Diffstat (limited to 'clang')
| -rw-r--r-- | clang/test/SemaCXX/constant-expression-cxx11.cpp | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/clang/test/SemaCXX/constant-expression-cxx11.cpp b/clang/test/SemaCXX/constant-expression-cxx11.cpp index 066136dd847..d1f1f924c66 100644 --- a/clang/test/SemaCXX/constant-expression-cxx11.cpp +++ b/clang/test/SemaCXX/constant-expression-cxx11.cpp @@ -1270,6 +1270,31 @@ namespace InvalidClasses { } } +// Constructors can be implicitly constexpr, even for a non-literal type. +namespace ImplicitConstexpr { + struct Q { Q() = default; Q(const Q&) = default; Q(Q&&) = default; ~Q(); }; // expected-note 3{{here}} + struct R { constexpr R(); constexpr R(const R&); constexpr R(R&&); ~R(); }; + struct S { R r; }; // expected-note 3{{here}} + struct T { T(const T&); T(T &&); ~T(); }; + struct U { T t; }; // expected-note 3{{here}} + static_assert(!__is_literal_type(Q), ""); + static_assert(!__is_literal_type(R), ""); + static_assert(!__is_literal_type(S), ""); + static_assert(!__is_literal_type(T), ""); + static_assert(!__is_literal_type(U), ""); + struct Test { + friend Q::Q() noexcept; // expected-error {{follows constexpr}} + friend Q::Q(Q&&) noexcept; // expected-error {{follows constexpr}} + friend Q::Q(const Q&) noexcept; // expected-error {{follows constexpr}} + friend S::S() noexcept; // expected-error {{follows constexpr}} + friend S::S(S&&) noexcept; // expected-error {{follows constexpr}} + friend S::S(const S&) noexcept; // expected-error {{follows constexpr}} + friend constexpr U::U() noexcept; // expected-error {{follows non-constexpr}} + friend constexpr U::U(U&&) noexcept; // expected-error {{follows non-constexpr}} + friend constexpr U::U(const U&) noexcept; // expected-error {{follows non-constexpr}} + }; +} + // Indirectly test that an implicit lvalue to xvalue conversion performed for // an NRVO move operation isn't implemented as CK_LValueToRValue. namespace PR12826 { |
