43 lines · cpp
1// RUN: %clang_cc1 -std=c++11 -verify %s -fexperimental-new-constant-interpreter2 3template<int n> struct S; // expected-note 3{{here}}4 5struct LiteralType {6 constexpr LiteralType(int n) : n(n) {}7 int n;8};9 10template<int n> struct T {11 T() {12 // An identifier is value-dependent if it is:13 // - a name declared with a dependent type14 S<n> s;15 S<s> check1; // ok, s is value-dependent16 // - the name of a non-type template parameter17 typename S<n>::T check2; // ok, n is value-dependent18 // - a potentially-constant variable that is initialized with an19 // expression that is value-dependent.20 const int k = n;21 typename S<k>::T check3a; // ok, u is value-dependent22 23 constexpr const int *p = &k;24 typename S<*p>::T check3b; // ok, p is value-dependent25 26 const int &i = k;27 typename S<i>::T check4; // ok, i is value-dependent28 29 static const int ki = 42;30 const int &i2 = ki;31 typename S<i2>::T check5; // expected-error {{undefined template}}32 33 constexpr LiteralType x = n;34 typename S<true ? 1 : x.n>::T check6; // ok, x is value-dependent35 36 const LiteralType y = n;37 typename S<true ? 2 : y.n>::T check7; // expected-error {{undefined template}}38 39 constexpr LiteralType z = 42;40 typename S<true ? 3 : z.n>::T check8; // expected-error {{undefined template}}41 }42};43