1 // RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s 2 // RUN: %clang_cc1 -fsyntax-only -verify -std=c++1z %s 3 4 struct NonLit { // expected-note 3{{no constexpr constructors}} 5 NonLit(); 6 }; 7 8 struct S { 9 static constexpr int a = 0; 10 static constexpr int b; // expected-error {{initializ}} expected-note 0-1{{previous}} 11 12 static constexpr int c = 0; 13 static const int d; 14 static const int d2 = 0; 15 16 static constexpr double e = 0.0; // ok 17 static const double f = 0.0; // expected-error {{requires 'constexpr' specifier}} expected-note {{add 'constexpr'}} 18 static char *const g = 0; // expected-error {{requires 'constexpr' specifier}} 19 static const NonLit h = NonLit(); // expected-error {{must be initialized out of line}} 20 21 static inline int i; // expected-note {{previous}} expected-warning 0-1{{extension}} 22 static inline int j; // expected-note {{previous}} expected-warning 0-1{{extension}} 23 static constexpr int k = 0; 24 }; 25 26 constexpr int S::a; 27 constexpr int S::b = 0; // expected-error 0-1{{redefinition}} 28 29 const int S::c; 30 constexpr int S::d = 0; 31 constexpr int S::d2; 32 33 int S::i; // expected-error {{redefinition}} 34 int S::j; // expected-error {{redefinition}} 35 const int S::k; // ok (deprecated) 36 37 template<typename T> 38 struct U { 39 static constexpr int a = 0; 40 static constexpr int b; // expected-error {{initializ}} 41 static constexpr NonLit h = NonLit(); // expected-error {{cannot have non-literal type 'const NonLit'}} 42 static constexpr T c = T(); // expected-error {{cannot have non-literal type}} 43 static const T d; 44 }; 45 46 template<typename T> constexpr T U<T>::d = T(); // expected-error {{non-literal type 'const NonLit'}} 47 48 U<int> u1; 49 U<NonLit> u2; // expected-note {{here}} 50 51 static_assert(U<int>::a == 0, ""); 52 53 constexpr int outofline = (U<NonLit>::d, 0); // expected-note {{here}} expected-warning {{unused}} 54
