libstdc++-v3/testsuite/30_threads/stop_token/stop_source/assign.cc

   1 // Copyright (C) 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 "-std=gnu++2a" }
  19 // { dg-add-options libatomic }
  20 // { dg-do run { target c++2a } }
  21
  22 #include <stop_token>
  23 #include <testsuite_hooks.h>
  24
  25 void
  26 test01()
  27 {
  28   std::stop_source src1, src2;
  29   const std::stop_source orig1(src1);
  30   VERIFY( src1 != src2 );
  31   src1 = src2;
  32   VERIFY( src1 == src2 );
  33   VERIFY( src1 != orig1 );
  34 }
  35
  36 void
  37 test02()
  38 {
  39   std::stop_source src1, src2;
  40   const std::stop_source orig1(src1), orig2(src2), src0(std::nostopstate);
  41   src1 = std::move(src2);
  42   VERIFY( src1 == orig2 );
  43   VERIFY( src2 == src0 );
  44   VERIFY( src1 != orig1 );
  45   VERIFY( src0 != orig1 );
  46 }
  47
  48 int main()
  49 {
  50   test01();
  51   test02();
  52 }