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

   1 // { dg-do run { target *-*-freebsd* *-*-netbsd* *-*-linux* *-*-solaris* *-*-cygwin *-*-darwin* alpha*-*-osf* mips-sgi-irix6* } }
   2 // { dg-options " -std=gnu++0x -pthread" { target *-*-freebsd* *-*-netbsd* *-*-linux* alpha*-*-osf* mips-sgi-irix6* } }
   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, 2009 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 2, 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 COPYING.  If not, write to the Free
  23 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  24 // USA.
  25
  26 // As a special exception, you may use this file as part of a free software
  27 // library without restriction.  Specifically, if other files instantiate
  28 // templates or use macros or inline functions from this file, or you compile
  29 // this file and link it with other files to produce an executable, this
  30 // file does not by itself cause the resulting executable to be covered by
  31 // the GNU General Public License.  This exception does not however
  32 // invalidate any other reasons why the executable file might be covered by
  33 // the GNU General Public License.
  34
  35 #include <functional> // std::unary_function, std::ref, std::cref
  36 #include <thread>
  37 #include <system_error>
  38 #include <testsuite_hooks.h>
  39
  40 struct noncopyable : std::unary_function<std::thread::id&, void>
  41 {
  42   noncopyable() = default;
  43   ~noncopyable() = default;
  44   noncopyable(const noncopyable&) = delete;
  45   noncopyable& operator=(const noncopyable&) = delete;
  46   void operator()(std::thread::id& id) const
  47   {
  48     id = std::this_thread::get_id();
  49   }
  50 };
  51
  52 // same as 3, but function is noncopyable function object
  53 // thread variadic cons not copied when std::ref
  54 // thread variadic cons copied when not std::ref
  55 // thread variadic cons not copied when std::cref
  56 // thread variadic cons copied when not std::cref
  57 // no errors
  58 void test03()
  59 {
  60   bool test __attribute__((unused)) = true;
  61
  62   try
  63     {
  64       std::thread::id t1_id1;
  65       noncopyable nc1;
  66       std::thread t1(std::ref(nc1), std::ref(t1_id1));
  67       std::thread::id t1_id2 = t1.get_id();
  68       VERIFY( t1.joinable() );
  69       t1.join();
  70       VERIFY( !t1.joinable() );
  71       VERIFY( t1_id1 == t1_id2 );
  72
  73       std::thread::id t2_id1;
  74       noncopyable nc2;
  75       std::thread t2(std::cref(nc2), std::ref(t2_id1));
  76       std::thread::id t2_id2 = t2.get_id();
  77       VERIFY( t2.joinable() );
  78       t2.join();
  79       VERIFY( !t2.joinable() );
  80       VERIFY( t2_id1 == t2_id2 );
  81     }
  82   catch(const std::system_error&)
  83     {
  84       VERIFY( false );
  85     }
  86   catch(...)
  87     {
  88       VERIFY( false );
  89     }
  90 }
  91
  92 int main()
  93 {
  94   test03();
  95   return 0;
  96 }