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