libstdc++-v3/testsuite/20_util/shared_ptr/creation/single_allocation_no_rtti.cc

   1 // Copyright (C) 2017-2020 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 "-fno-rtti" }
  19 // { dg-do run { target c++11 } }
  20
  21 #include <memory>
  22 #include <testsuite_hooks.h>
  23
  24 int counter = 0;
  25
  26 template<typename T>
  27 struct Alloc : std::allocator<T>
  28 {
  29   template<typename U>
  30     struct rebind { using other = Alloc<U>; };
  31
  32   Alloc() = default;
  33
  34   template<typename U>
  35     Alloc(const Alloc<U>&) { }
  36
  37   T* allocate(std::size_t n)
  38   {
  39     ++counter;
  40     return std::allocator<T>::allocate(n);
  41   }
  42 };
  43
  44
  45 void
  46 test01()
  47 {
  48   std::allocate_shared<int>(Alloc<int>());
  49   VERIFY( counter == 1 );
  50 }
  51
  52 int
  53 main()
  54 {
  55   test01();
  56 }