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1// RUN: %clang_cc1 -fsyntax-only -verify %s2namespace N {3  struct Outer {4    struct Inner {5      template<typename T>6      struct InnerTemplate {7        struct VeryInner {8          typedef T type;9 10          static enum K1 { K1Val = sizeof(T) } Kind1;11          static enum { K2Val = sizeof(T)*2 } Kind2;12          enum { K3Val = sizeof(T)*2 } Kind3;13 14          void foo() {15            K1 k1 = K1Val;16            Kind1 = K1Val;17            Outer::Inner::InnerTemplate<type>::VeryInner::Kind2 = K2Val;18            Kind3 = K3Val;19          }20 21          struct UeberInner {22            void bar() {23              K1 k1 = K1Val;24              Kind1 = K1Val;25              Outer::Inner::InnerTemplate<type>::VeryInner::Kind2 = K2Val;26 27              InnerTemplate t;28              InnerTemplate<type> t2;29            }30          };31        };32      };33    };34  };35}36 37typedef int INT;38template struct N::Outer::Inner::InnerTemplate<INT>::VeryInner;39template struct N::Outer::Inner::InnerTemplate<INT>::UeberInner; // expected-error{{no struct named 'UeberInner' in 'N::Outer::Inner::InnerTemplate<int>'}}40 41namespace N2 {42  struct Outer2 {43    template<typename T, typename U = T>44    struct Inner {45      void foo() {46        enum { K1Val = sizeof(T) } k1;47        enum K2 { K2Val = sizeof(T)*2 } k2a;48 49        K2 k2b = K2Val;50 51        struct S { T x, y; } s1;52        struct { U x, y; } s2;53        s1.x = s2.x; // expected-error{{incompatible}}54 55        typedef T type;56        type t2 = s1.x;57 58        typedef struct { T z; } type2;59        type2 t3 = { s1.x };60 61        Inner i1;62        i1.foo();63        Inner<T> i2;64        i2.foo();65      }66    };67  };68}69 70template struct N2::Outer2::Inner<float>;71template struct N2::Outer2::Inner<int*, float*>; // expected-note{{instantiation}}72 73// Test dependent pointer-to-member expressions.74template<typename T>75struct smart_ptr {76  struct safe_bool {77    int member;78  };79  80  operator int safe_bool::*() const { 81    return ptr? &safe_bool::member : 0;82  }83  84  T* ptr;85};86 87void test_smart_ptr(smart_ptr<int> p) {88  if (p) { }89}90 91// PR551792namespace test0 {93  template <int K> struct X {94    X() { extern void x(); }95  };96  void g() { X<2>(); }97}98 99namespace test1 {100  template <typename T> void f(T const &t) {101    union { char c; T t_; };102    c = 'a'; // <- this shouldn't silently fail to instantiate103    T::foo(); // expected-error {{has no members}}104  }105  template void f(int const &); // expected-note {{requested here}}106}107 108namespace test2 {109  template<typename T> void f() {110    T::error; // expected-error {{no member}}111  }112  void g() {113    // This counts as an odr-use, so should trigger the instantiation of f<int>.114    (void)&f<int>; // expected-note {{here}}115  }116}117