Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/cpp1y/var-templ47.C @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
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date | Thu, 25 Oct 2018 07:37:49 +0900 |
parents | 04ced10e8804 |
children |
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// PR c++/69009 // { dg-do compile { target c++14 } } using _uchar = char; using _size_t = decltype(sizeof(_uchar)); using size_t = _size_t; template <class T, T> struct integral_constant; template <bool b> using bool_constant = integral_constant<bool, b>; template <class> constexpr auto tuple_size_v = 0; template <class T> auto const tuple_size_v<T const volatile> = tuple_size_v<T>; template <class T> using tuple_size = integral_constant<size_t, tuple_size_v<T>>; template <typename Base, typename Deriv> using is_base_of = bool_constant<__is_base_of(Base, Deriv)>; template <class T, size_t N> void test() { is_base_of<integral_constant<size_t, N>, tuple_size<T>> value( is_base_of<integral_constant<size_t, N>, tuple_size<const volatile T>>); } void foo() { test<int, 0>; }