libstdc++-v3/testsuite/20_util/unique_ptr/cons/incomplete.cc

   1 // Copyright (C) 2018-2024 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-do compile { target c++11 } }
  19
  20 #include <memory>
  21
  22 struct Incomplete;
  23
  24 void f(void** p)
  25 {
  26   ::new (p[0]) std::unique_ptr<Incomplete>();
  27
  28   // PR libstdc++/87704
  29   ::new (p[1]) std::unique_ptr<Incomplete>(nullptr);
  30 }
  31
  32 // The standard says "T shall be a complete type" for unique_ptr<T[], D>
  33 // so this is a GCC extension.
  34 void f_array(void** p)
  35 {
  36   ::new (p[0]) std::unique_ptr<Incomplete[]>();
  37
  38   // PR libstdc++/87704
  39   ::new (p[1]) std::unique_ptr<Incomplete[]>(nullptr);
  40 }