35 lines · cpp
1// RUN: %clang_cc1 -fsyntax-only -verify %s2template<class T> struct A {3 struct B { };4 template<class U> struct C { };5};6 template<> struct A<int> {7 void f(int);8};9void h() {10 A<int> a;11 a.f(16);12}13// A<int>::f must be defined somewhere14// template<> not used for a member of an // explicitly specialized class template15void A<int>::f(int) { /* ... */ }16 template<> struct A<char>::B {17 void f();18};19// template<> also not used when defining a member of // an explicitly specialized member class20void A<char>::B::f() { /* ... */ }21 template<> template<class U> struct A<char>::C {22 void f();23};24 25template<>26template<class U> void A<char>::C<U>::f() { /* ... */ }27 template<> struct A<short>::B {28 void f();29};30template<> void A<short>::B::f() { /* ... */ } // expected-error{{no function template matches function template specialization 'f'}}31 template<> template<class U> struct A<short>::C {32 void f();33};34template<class U> void A<short>::C<U>::f() { /* ... */ } // expected-error{{template parameter list matching the non-templated nested type 'A<short>' should be empty ('template<>')}}35