| // 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}} |