1 // RUN: %clang_cc1 -fsyntax-only -verify %s 2 // expected-no-diagnostics 3 template<int I, int J, class T> struct X { 4 static const int value = 0; 5 }; 6 7 template<int I, int J> struct X<I, J, int> { 8 static const int value = 1; 9 }; 10 11 template<int I> struct X<I, I, int> { 12 static const int value = 2; 13 }; 14 15 int array0[X<0, 0, float>::value == 0? 1 : -1]; 16 int array1[X<0, 1, int>::value == 1? 1 : -1]; 17 int array2[X<0, 0, int>::value == 2? 1 : -1]; 18 19 namespace DependentSubstPartialOrdering { 20 template<typename T, typename U = void, typename V = void> 21 struct X { 22 static const unsigned value = 1; 23 }; 24 25 template<typename T, typename U> 26 struct X<T, U, typename T::is_b> { 27 static const unsigned value = 2; 28 }; 29 30 template<typename T> 31 struct X<T, typename T::is_a, typename T::is_b> { 32 static const unsigned value = 3; 33 }; 34 35 struct X1 { }; 36 37 struct X2 { 38 typedef void is_b; 39 }; 40 41 struct X3 { 42 typedef void is_a; 43 typedef void is_b; 44 }; 45 46 int check_X1[X<X1, void, void>::value == 1? 1 : -1]; 47 int check_X2[X<X2, void, void>::value == 2? 1 : -1]; 48 int check_X3[X<X3, void, void>::value == 3? 1 : -1]; 49 } 50