libstdc++-v3/testsuite/std/concepts/concepts.lang/concept.destructible/1.cc

   1 // Copyright (C) 2019-2020 Free Software Foundation, Inc.
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 3, or (at your option)
   7 // any later version.
   8
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING3.  If not see
  16 // <http://www.gnu.org/licenses/>.
  17
  18 // { dg-options "-std=gnu++2a" }
  19 // { dg-do compile { target c++2a } }
  20
  21 #include <concepts>
  22
  23 static_assert( !std::destructible<void> );
  24 static_assert( std::destructible<char> );
  25 static_assert( std::destructible<float> );
  26 static_assert( std::destructible<int*> );
  27 static_assert( std::destructible<int&> );
  28 static_assert( std::destructible<int&&> );
  29 static_assert( std::destructible<const int&> );
  30 static_assert( !std::destructible<int[]> );
  31 static_assert( std::destructible<int[2]> );
  32 static_assert( !std::destructible<int()> );
  33 static_assert( std::destructible<int(*)()> );
  34 static_assert( std::destructible<int(&)()> );
  35
  36 enum E { };
  37 static_assert( std::destructible<E> );
  38 enum class CE { };
  39 static_assert( std::destructible<CE> );
  40 struct A { };
  41 static_assert( std::destructible<A> );
  42 union B { };
  43 static_assert( std::destructible<B> );
  44
  45 struct C
  46 {
  47   ~C() noexcept(false) { }
  48 };
  49 static_assert( !std::destructible<C> );
  50 class D
  51 {
  52 public:
  53   D() { }
  54 private:
  55   ~D() { }
  56 };
  57 static_assert( !std::destructible<D> );