Author: Matheus Izvekov Date: 2024-05-16T02:45:50-03:00 New Revision: 70a926cfb1d4af326be5afe6419991aeff8f44b2
URL: https://github.com/llvm/llvm-project/commit/70a926cfb1d4af326be5afe6419991aeff8f44b2 DIFF: https://github.com/llvm/llvm-project/commit/70a926cfb1d4af326be5afe6419991aeff8f44b2.diff LOG: [clang] NFC: Add a few more interesting test cases for CWG2398 Added: Modified: clang/test/SemaTemplate/cwg2398.cpp Removed: ################################################################################ diff --git a/clang/test/SemaTemplate/cwg2398.cpp b/clang/test/SemaTemplate/cwg2398.cpp index a20155486b123..d163354b2e5fe 100644 --- a/clang/test/SemaTemplate/cwg2398.cpp +++ b/clang/test/SemaTemplate/cwg2398.cpp @@ -137,3 +137,61 @@ namespace ttp_defaults { // old-error@-2 {{template template argument has diff erent template parameters}} // old-error@-3 {{explicit instantiation of 'f' does not refer to a function template}} } // namespace ttp_defaults + +namespace ttp_only { + template <template <class... > class TT1> struct A { static constexpr int V = 0; }; + // new-note@-1 2{{template is declared here}} + template <template <class > class TT2> struct A<TT2> { static constexpr int V = 1; }; + // new-error@-1 {{not more specialized than the primary template}} + // new-note@-2 {{partial specialization matches}} + template <template <class, class> class TT3> struct A<TT3> { static constexpr int V = 2; }; + // new-error@-1 {{not more specialized than the primary template}} + // new-note@-2 {{partial specialization matches}} + + template <class ... > struct B; + template <class > struct C; + template <class, class > struct D; + template <class, class, class> struct E; + + static_assert(A<B>::V == 0); // new-error {{ambiguous partial specializations}} + static_assert(A<C>::V == 1); + static_assert(A<D>::V == 2); + static_assert(A<E>::V == 0); +} // namespace ttp_only + +namespace consistency { + template<class T> struct nondeduced { using type = T; }; + template<class T8, class T9 = float> struct B; + + namespace t1 { + template<class T1, class T2, class T3> struct A; + + template<template<class, class> class TT1, + class T1, class T2, class T3, class T4> + struct A<TT1<T1, T2>, TT1<T3, T4>, typename nondeduced<TT1<T1, T2>>::type> {}; + + template<template<class> class UU1, + template<class> class UU2, + class U1, class U2> + struct A<UU1<U1>, UU2<U2>, typename nondeduced<UU1<U1>>::type>; + + template struct A<B<int>, B<int>, B<int>>; + } // namespace t1 + namespace t2 { + template<class T1, class T2, class T3> struct A; + + template<template<class, class> class TT1, + class T1, class T2, class T3, class T4> + struct A<TT1<T1, T2>, TT1<T3, T4>, typename nondeduced<TT1<T1, T4>>::type> {}; + // new-note@-1 {{partial specialization matches}} + + template<template<class> class UU1, + template<class> class UU2, + class U1, class U2> + struct A<UU1<U1>, UU2<U2>, typename nondeduced<UU1<U1>>::type>; + // new-note@-1 {{partial specialization matches}} + + template struct A<B<int>, B<int>, B<int>>; + // new-error@-1 {{ambiguous partial specializations}} + } // namespace t1 +} // namespace consistency _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
