// RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s struct NonLit { // expected-note 3{{no constexpr constructors}} NonLit(); }; struct S { static constexpr int a = 0; static constexpr int b; // expected-error {{declaration of constexpr static data member 'b' requires an initializer}} static constexpr int c = 0; static const int d; static const int d2 = 0; static constexpr double e = 0.0; // ok static const double f = 0.0; // expected-error {{requires 'constexpr' specifier}} expected-note {{add 'constexpr'}} static char *const g = 0; // expected-error {{requires 'constexpr' specifier}} static const NonLit h = NonLit(); // expected-error {{must be initialized out of line}} }; constexpr int S::a; constexpr int S::b = 0; const int S::c; constexpr int S::d = 0; constexpr int S::d2; template<typename T> struct U { static constexpr int a = 0; static constexpr int b; // expected-error {{declaration of constexpr static data member 'b' requires an initializer}} static constexpr NonLit h = NonLit(); // expected-error {{cannot have non-literal type 'const NonLit'}} static constexpr T c = T(); // expected-error {{cannot have non-literal type}} static const T d; }; template<typename T> constexpr T U<T>::d = T(); // expected-error {{non-literal type 'const NonLit'}} U<int> u1; U<NonLit> u2; // expected-note {{here}} static_assert(U<int>::a == 0, ""); constexpr int outofline = (U<NonLit>::d, 0); // expected-note {{here}} expected-warning {{unused}}