Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/concepts/variadic4.C @ 158:494b0b89df80 default tip
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author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
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date | Mon, 25 May 2020 18:13:55 +0900 |
parents | 1830386684a0 |
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// PR c++/73456 // { dg-do compile { target c++17_only } } // { dg-options "-fconcepts" } template<typename...> struct list {}; template<typename Seq> concept bool Sequence = true; template<Sequence... Seqs> // requires (Sequence<Seqs> && ...) struct zip; template<Sequence... Seqs> requires requires { typename list<Seqs...>; } // && (Sequence<Seqs> && ...) struct zip<Seqs...> {}; // { dg-error "does not specialize" } // The constraints of the specialization and the sequence are not // comparable; the specializations are unordered. int main() { zip<list<>, list<int>> {}; }