libstdc++-v3/testsuite/30_threads/shared_lock/70766.cc

   1 // Copyright (C) 2016-2024 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++17 } }
  19
  20 #include <shared_mutex>
  21
  22 namespace adl
  23 {
  24   template<typename T>
  25     void operator&(const T&) = delete;
  26
  27   struct M : std::shared_timed_mutex { };
  28 }
  29
  30 void
  31 test01()
  32 {
  33   using namespace std::chrono_literals;
  34
  35   adl::M m;
  36   std::shared_lock<adl::M> l1(m);
  37   std::shared_lock<adl::M> l2(m, std::defer_lock);
  38   std::shared_lock<adl::M> l3(m, std::try_to_lock);
  39   m.lock_shared();
  40   std::shared_lock<adl::M> l4(m, std::adopt_lock);
  41   std::shared_lock<adl::M> l5(m, std::chrono::system_clock::now() + 1ms);
  42   std::shared_lock<adl::M> l6(m, 1ms);
  43 }