main/libstdc++-v3/testsuite/30_threads/thread/cons/4.cc

   1 // { dg-do run { target *-*-freebsd* *-*-netbsd* *-*-linux* *-*-solaris* *-*-cygwin *-*-darwin* powerpc-ibm-aix* } }
   2 // { dg-options " -std=gnu++0x -pthread" { target *-*-freebsd* *-*-netbsd* *-*-linux* powerpc-ibm-aix* } }
   3 // { dg-options " -std=gnu++0x -pthreads" { target *-*-solaris* } }
   4 // { dg-options " -std=gnu++0x " { target *-*-cygwin *-*-darwin* } }
   5 // { dg-require-cstdint "" }
   6 // { dg-require-gthreads "" }
   7
   8 // Copyright (C) 2008-2013 Free Software Foundation, Inc.
   9 //
  10 // This file is part of the GNU ISO C++ Library.  This library is free
  11 // software; you can redistribute it and/or modify it under the
  12 // terms of the GNU General Public License as published by the
  13 // Free Software Foundation; either version 3, or (at your option)
  14 // any later version.
  15
  16 // This library is distributed in the hope that it will be useful,
  17 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 // GNU General Public License for more details.
  20
  21 // You should have received a copy of the GNU General Public License along
  22 // with this library; see the file COPYING3.  If not see
  23 // <http://www.gnu.org/licenses/>.
  24
  25
  26 #include <functional> // std::unary_function, std::ref, std::cref
  27 #include <thread>
  28 #include <system_error>
  29 #include <testsuite_hooks.h>
  30
  31 struct noncopyable : std::unary_function<std::thread::id&, void>
  32 {
  33   noncopyable() = default;
  34   ~noncopyable() = default;
  35   noncopyable(const noncopyable&) = delete;
  36   noncopyable& operator=(const noncopyable&) = delete;
  37   void operator()(std::thread::id& id) const
  38   {
  39     id = std::this_thread::get_id();
  40   }
  41 };
  42
  43 // same as 3, but function is noncopyable function object
  44 // thread variadic cons not copied when std::ref
  45 // thread variadic cons copied when not std::ref
  46 // thread variadic cons not copied when std::cref
  47 // thread variadic cons copied when not std::cref
  48 // no errors
  49 void test03()
  50 {
  51   bool test __attribute__((unused)) = true;
  52
  53   try
  54     {
  55       std::thread::id t1_id1;
  56       noncopyable nc1;
  57       std::thread t1(std::ref(nc1), std::ref(t1_id1));
  58       std::thread::id t1_id2 = t1.get_id();
  59       VERIFY( t1.joinable() );
  60       t1.join();
  61       VERIFY( !t1.joinable() );
  62       VERIFY( t1_id1 == t1_id2 );
  63
  64       std::thread::id t2_id1;
  65       noncopyable nc2;
  66       std::thread t2(std::cref(nc2), std::ref(t2_id1));
  67       std::thread::id t2_id2 = t2.get_id();
  68       VERIFY( t2.joinable() );
  69       t2.join();
  70       VERIFY( !t2.joinable() );
  71       VERIFY( t2_id1 == t2_id2 );
  72     }
  73   catch(const std::system_error&)
  74     {
  75       VERIFY( false );
  76     }
  77   catch(...)
  78     {
  79       VERIFY( false );
  80     }
  81 }
  82
  83 int main()
  84 {
  85   test03();
  86   return 0;
  87 }