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view gcc/testsuite/g++.dg/cpp0x/variadic-sizeof4.C @ 111:04ced10e8804
gcc 7
author | kono |
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date | Fri, 27 Oct 2017 22:46:09 +0900 |
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// PR c++/69958 // { dg-do compile { target c++11 } } typedef decltype(sizeof(int)) size_t; template <typename...Ts> struct list { }; template <size_t N> struct size { }; template <typename...Ts> using size_for = size<sizeof...(Ts)>; template<class T, class U> struct assert_same; template<class T> struct assert_same<T,T> {}; template <typename T, typename...Ts> using wrapped = list<T, size_for<T, Ts...>>; // This assertion fails (produces size<4>) assert_same< list<float, size<5>>, wrapped<float, int, double, char, unsigned>> a3; template <typename T, typename...Ts> using wrapped2 = list<T, size_for<Ts..., T>>; // This assertion fails (produces size<2>) assert_same< list<float, size<5>>, wrapped2<float, int, double, char, unsigned>> a4;