libstdc++-v3/testsuite/29_atomics/atomic/60658.cc

   1 // { dg-do run { target c++11 } }
   2 // { dg-require-atomic-builtins "" }
   3
   4 // Copyright (C) 2014-2022 Free Software Foundation, Inc.
   5 //
   6 // This file is part of the GNU ISO C++ Library.  This library is free
   7 // software; you can redistribute it and/or modify it under the
   8 // terms of the GNU General Public License as published by the
   9 // Free Software Foundation; either version 3, or (at your option)
  10 // any later version.
  11
  12 // This library is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU General Public License for more details.
  16
  17 // You should have received a copy of the GNU General Public License along
  18 // with this library; see the file COPYING3.  If not see
  19 // <http://www.gnu.org/licenses/>.
  20
  21 #include <atomic>
  22 #include <testsuite_hooks.h>
  23
  24 // libstdc++/60658
  25
  26 struct Foo {
  27   char buf[1];
  28 };
  29
  30 struct Bar {
  31   char buf[100];
  32 };
  33
  34 int
  35 main ()
  36 {
  37   std::atomic<Foo*> a;
  38   std::atomic<Bar*> b;
  39
  40   VERIFY (a.is_lock_free() == b.is_lock_free());
  41 }