libstdc++-v3/testsuite/29_atomics/atomic/70766.cc

   1 // Copyright (C) 2016-2019 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 <atomic>
  21
  22 namespace adl
  23 {
  24   template<typename T>
  25     void operator&(const T&) = delete;
  26
  27   struct X {
  28     int i;
  29   };
  30 }
  31
  32 void
  33 test01()
  34 {
  35   adl::X x;
  36   std::atomic<adl::X> a;
  37   a.store(x);
  38   x = a.load();
  39   x = a.exchange(x);
  40   a.compare_exchange_weak(x, x);
  41   a.compare_exchange_strong(x, x);
  42 }
  43
  44 void
  45 test02()
  46 {
  47   adl::X x;
  48   volatile std::atomic<adl::X> a;
  49   a.store(x);
  50   x = a.load();
  51   x = a.exchange(x);
  52   a.compare_exchange_weak(x, x);
  53   a.compare_exchange_strong(x, x);
  54 }