Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/cpp0x/sfinae9.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++/48450 // { dg-do compile { target c++11 } } namespace std { template <class T> T&& declval(); } template<class To, class From, class = decltype(static_cast<To>(std::declval<From>())) > char f(int); template<class, class> char (&f(...))[2]; struct A { virtual ~A() = 0; }; struct B {}; struct D : B {}; static_assert(sizeof(f<A, int>(0)) != 1, "Error"); // a static_assert(sizeof(f<int*, const void*>(0)) != 1, "Error"); // b static_assert(sizeof(f<D*, const B*>(0)) != 1, "Error"); // c static_assert(sizeof(f<int B::*, const int D::*>(0)) != 1, "Error"); // d static_assert(sizeof(f<B, void>(0)) != 1, "Error"); // e