1 // RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s 2 3 template<typename T> using A = int; // expected-note 2{{previous}} 4 template<typename T> using A = char; // expected-error {{type alias template redefinition with different types ('char' vs 'int')}} 5 template<typename T1, typename T2> using A = T1; // expected-error {{too many template parameters in template redeclaration}} 6 7 template<typename T1, typename T2> using B = T1; // expected-note {{previous}} 8 template<typename T2, typename T1> using B = T1; // expected-error {{type alias template redefinition with different types}} 9 10 11 template<typename> struct S; 12 template<template<typename> class F> using FInt = F<int>; 13 template<typename X> using SXRInt = FInt<S<X>::template R>; 14 template<typename X> using SXRInt = typename S<X>::template R<int>; // ok, redeclaration. 15 16 template<template<typename> class> struct TT; 17 18 namespace FilterLookup { 19 TT<A> f(); // expected-note {{previous declaration is here}} 20 21 template<typename> using A = int; 22 TT<A> f(); // expected-error {{functions that differ only in their return type cannot be overloaded}} 23 } 24
