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