1f4a2713aSLionel Sambuc // RUN: %clang_cc1 -std=c++11 %s -verify 2f4a2713aSLionel Sambuc // RUN: %clang_cc1 -std=c++1y %s -verify -DCXX1Y 3f4a2713aSLionel Sambuc 4f4a2713aSLionel Sambuc struct X { 5f4a2713aSLionel Sambuc constexpr int f(); // @5 6f4a2713aSLionel Sambuc int f(); // @6 7f4a2713aSLionel Sambuc }; 8f4a2713aSLionel Sambuc 9f4a2713aSLionel Sambuc #ifdef CXX1Y 10f4a2713aSLionel Sambuc // FIXME: Detect this situation and provide a better recovery. 11f4a2713aSLionel Sambuc 12f4a2713aSLionel Sambuc // expected-error@6 {{class member cannot be redeclared}} 13f4a2713aSLionel Sambuc // expected-note@5 {{previous}} 14f4a2713aSLionel Sambuc // expected-error@6 {{non-constexpr declaration of 'f' follows constexpr declaration}} 15f4a2713aSLionel Sambuc // expected-note@5 {{previous}} 16f4a2713aSLionel Sambuc #else 17*0a6a1f1dSLionel Sambuc // expected-warning@5 {{'constexpr' non-static member function will not be implicitly 'const' in C++14; add 'const' to avoid a change in behavior}} 18f4a2713aSLionel Sambuc #endif 19