1 // RUN: %clang_cc1 -fsyntax-only -verify %s 2 // RUN: %clang_cc1 -fsyntax-only -verify -std=c++98 %s 3 // RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s 4 template<typename T> struct vector; 5 6 // C++ [temp.class.spec]p6: 7 namespace N { 8 namespace M { 9 template<typename T> struct A; 10 } 11 } 12 13 template<typename T> 14 struct N::M::A<T*> { }; 15 16 // C++ [temp.class.spec]p9 17 // bullet 1, as amended by DR1315 18 template <int I, int J> struct A {}; 19 template <int I> struct A<I+5, I*2> {}; // expected-error{{cannot be deduced}} expected-note {{'I'}} 20 template <int I, int J> struct B {}; 21 template <int I> struct B<I, I> {}; //OK 22 23 // bullet 2 24 template <class T, T t> struct C {}; // expected-note{{declared here}} 25 template <class T> struct C<T, 1>; // expected-error{{specializes}} 26 template <class T, T* t> struct C<T*, t>; // okay 27 28 template< int X, int (*array_ptr)[X] > class A2 {}; // expected-note{{here}} 29 int array[5]; 30 template< int X > class A2<X, &array> { }; // expected-error{{specializes}} 31 32 template<typename T, int N, template<typename X> class TT> 33 struct Test0; 34 35 // bullet 3 36 template<typename T, int N, template<typename X> class TT> 37 struct Test0<T, N, TT>; // expected-error{{does not specialize}} 38 39 // C++ [temp.class.spec]p10 40 template<typename T = int, // expected-error{{default template argument}} 41 int N = 17, // expected-error{{default template argument}} 42 template<typename X> class TT = ::vector> // expected-error{{default template argument}} 43 struct Test0<T*, N, TT> { }; 44 45 template<typename T> struct Test1; 46 template<typename T, typename U> // expected-note{{non-deducible}} 47 struct Test1<T*> { }; // expected-error{{never be used}} 48