libstdc++-v3/testsuite/20_util/unique_ptr/modifiers/reset_neg.cc

   1 // { dg-do compile { target c++11 } }
   2
   3 // Copyright (C) 2008-2024 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 3, or (at your option)
   9 // any later version.
  10
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING3.  If not see
  18 // <http://www.gnu.org/licenses/>.
  19
  20 #include <memory>
  21
  22 struct A
  23 {
  24   virtual ~A() { }
  25 };
  26
  27 struct B : A
  28 {
  29 };
  30
  31 void
  32 test01()
  33 {
  34   std::unique_ptr<B[]> up;
  35   up.reset(new A[3]);           // { dg-error "no matching function" }
  36
  37   std::unique_ptr<A[]> up2;
  38   up2.reset(new B[3]);          // { dg-error "no matching function" }
  39 }
  40
  41 struct A_pointer { operator A*() const { return nullptr; } };
  42
  43 void
  44 test02()
  45 {
  46   A_pointer p;
  47   // Disallow conversions from user-defined pointer-like types
  48   // for the array version
  49   std::unique_ptr<A[]> upA3;
  50   upA3.reset(p); // { dg-error "no matching function" }
  51   std::unique_ptr<const A[]> cA3;
  52   cA3.reset(p); // { dg-error "no matching function" }
  53   std::unique_ptr<volatile A[]> vA3;
  54   vA3.reset(p); // { dg-error "no matching function" }
  55   std::unique_ptr<const volatile A[]> cvA3;
  56   cvA3.reset(p); // { dg-error "no matching function" }
  57 }
  58
  59 // { dg-prune-output "enable_if" }