Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/cpp0x/alias-decl-52.C @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
---|---|
date | Thu, 25 Oct 2018 07:37:49 +0900 |
parents | 04ced10e8804 |
children |
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// PR c++/67021 // { dg-do compile { target c++11 } } template<typename> struct Dummy; template<> struct Dummy<int> {}; template <class...> struct all_same { static constexpr bool value = true; }; template <class T, class...Rest> struct all_same<T, T, Rest...> : all_same<T, Rest...> {}; template <class T, class U, class...Rest> struct all_same<T, U, Rest...> { static constexpr bool value = false; }; template <class R> using ValueType = int; template <class I> constexpr bool A(I i) { return all_same<ValueType<I>, ValueType<decltype(i++)>>::value; } int main() { static_assert(A(42), ""); }