libstdc++-v3/testsuite/30_threads/lock_guard/cons/1.cc

   1 // { dg-do run { target *-*-freebsd* *-*-netbsd* *-*-linux* *-*-solaris* *-*-cygwin *-*-darwin* alpha*-*-osf* mips-sgi-irix6* powerpc-ibm-aix* } }
   2 // { dg-options " -std=gnu++0x -pthread" { target *-*-freebsd* *-*-netbsd* *-*-linux* alpha*-*-osf* mips-sgi-irix6* 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) 2010, 2011, 2012 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 <mutex>
  27 #include <testsuite_hooks.h>
  28
  29 struct Mutex
  30 {
  31   Mutex() : locked(false) { }
  32
  33   ~Mutex()
  34   {
  35     if (locked)
  36       throw 0;
  37   }
  38
  39   void lock()
  40   {
  41     if (locked)
  42       throw 0;
  43     locked = true;
  44   }
  45
  46   void unlock()
  47   {
  48     if (!locked)
  49       throw 0;
  50     locked = false;
  51   }
  52
  53   bool locked;
  54 };
  55
  56 void test01()
  57 {
  58   bool test __attribute__((unused)) = true;
  59
  60   Mutex m;
  61   m.lock();
  62
  63   try
  64     {
  65       std::lock_guard<Mutex> l(m, std::adopt_lock);
  66     }
  67   catch (...)
  68     {
  69       VERIFY( false );
  70     }
  71
  72   VERIFY( !m.locked );
  73 }
  74
  75 int main()
  76 {
  77   test01();
  78   return 0;
  79 }