libstdc++-v3/testsuite/20_util/to_address/1_neg.cc

   1 // Copyright (C) 2017-2022 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 // { dg-error "not a function pointer" "" { target *-*-* } 0 }
  21
  22 #include <memory>
  23
  24 struct P
  25 {
  26   using element_type = void();
  27
  28   element_type* operator->() const noexcept
  29   { return nullptr; }
  30 };
  31
  32 void test01()
  33 {
  34   P p;
  35   std::to_address(p); // { dg-error "" }
  36 }