[gcc] GCC 4.5.0=>4.5.1

gcc/libstdc++-v3/testsuite/20_util/shared_ptr/thread/mutex_weaktoshared.cc

Index: gcc/libstdc++-v3/testsuite/20_util/shared_ptr/thread/mutex_weaktoshared.cc
diff --git a/gcc/libstdc++-v3/testsuite/20_util/shared_ptr/thread/mutex_weaktoshared.cc b/gcc/libstdc++-v3/testsuite/20_util/shared_ptr/thread/mutex_weaktoshared.cc
deleted file mode 100644
index e4ac7ee8ca545183131c7d04dafa554be434210b..0000000000000000000000000000000000000000
--- a/gcc/libstdc++-v3/testsuite/20_util/shared_ptr/thread/mutex_weaktoshared.cc
+++ /dev/null
@@ -1,196 +0,0 @@
-// Copyright (C) 2006, 2007, 2008, 2009 Free Software Foundation
-//
-// This file is part of the GNU ISO C++ Library.  This library is free
-// software; you can redistribute it and/or modify it under the
-// terms of the GNU General Public License as published by the
-// Free Software Foundation; either version 3, or (at your option)
-// any later version.
-
-// This library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-
-// You should have received a copy of the GNU General Public License along
-// with this library; see the file COPYING3.  If not see
-// <http://www.gnu.org/licenses/>.
-
-// 20.6.6.2 Template class shared_ptr [util.smartptr.shared]
-
-// { dg-do run { target *-*-freebsd* *-*-netbsd* *-*-linux* *-*-solaris* *-*-cygwin *-*-darwin* alpha*-*-osf* mips-sgi-irix6* } }
-// { dg-options " -std=gnu++0x -pthread" { target *-*-freebsd* *-*-netbsd* *-*-linux* alpha*-*-osf* mips-sgi-irix6* } }
-// { dg-options " -std=gnu++0x -pthreads" { target *-*-solaris* } }
-// { dg-options " -std=gnu++0x " { target *-*-cygwin *-*-darwin* } }
-
-#include <memory>
-#include <random>
-#include <vector>
-#include <testsuite_hooks.h>
-#include <iostream>
-#include <cstdlib>
-
-#include <pthread.h>
-
-#ifdef _GLIBCXX_HAVE_UNISTD_H
-#include <unistd.h>	// To test for _POSIX_THREAD_PRIORITY_SCHEDULING
-#endif
-
-/* This (brute-force) tests the atomicity and thus thread safety of the
- * shared_ptr <- weak_ptr
- * assignment operation by allocating a test object, retrieving a weak
- * reference to it, and letting a number of threads repeatedly create strong
- * references from the weak reference.
- * Specifically, this tests the function _Sp_counted_base<true>::add_ref_lock()
- */
-
-
-const unsigned int HAMMER_MAX_THREADS = 10;
-const unsigned int POOL_SIZE = 1000;
-const unsigned long HAMMER_REPEAT = 100000;
-const unsigned long KILL_ONE_IN = 1000;
-
-struct A
-  {
-    static _Atomic_word counter;
-    A()
-      {
-	__gnu_cxx::__atomic_add(&counter, 1);
-      }
-    ~A()
-      {
-	__gnu_cxx::__atomic_add(&counter, -1);
-      }
-  };
-
-_Atomic_word A::counter = 0;
-
-using std::_S_mutex;
-
-typedef std::__shared_ptr<A, _S_mutex> sp_A_t;
-typedef std::__weak_ptr<A, _S_mutex> wp_A_t;
-
-typedef std::vector<sp_A_t> sp_vector_t;
-typedef std::vector<wp_A_t> wp_vector_t;
-
-struct shared_and_weak_pools
-{
-  sp_vector_t& shared_pool;
-  wp_vector_t& weak_pool;
-  
-  shared_and_weak_pools(sp_vector_t& _shared_pool, wp_vector_t& _weak_pool)
-    : shared_pool(_shared_pool), weak_pool(_weak_pool)
-    { }
-};
-
-void* thread_hammer_and_kill(void* opaque_pools)
-{
-  shared_and_weak_pools& pools = *static_cast<shared_and_weak_pools*>(opaque_pools);
-  // Using the same parameters as in the RNG test cases.
-  std::mersenne_twister<
-    unsigned long, 32, 624, 397, 31,
-    0x9908b0dful, 11, 7,
-    0x9d2c5680ul, 15,
-    0xefc60000ul, 18> rng;
-  
-  sp_vector_t::iterator cur_shared = pools.shared_pool.begin();
-  wp_vector_t::iterator cur_weak = pools.weak_pool.begin();
-  
-  for (unsigned int i = 0; i < HAMMER_REPEAT; ++i)
-    {
-      try
-      {
-        sp_A_t strong(*cur_weak);
-      }
-      catch (std::bad_weak_ptr& exception)
-      {
-        ++cur_weak;
-        if (cur_weak == pools.weak_pool.end())
-          break;
-      }
-      
-      if (rng() % KILL_ONE_IN == 0)
-      {
-        cur_shared->reset();
-        ++cur_shared;
-      }
-    }
-  return 0;
-}
-
-void* thread_hammer(void* opaque_weak)
-{
-  wp_vector_t& weak_pool = *static_cast<wp_vector_t*>(opaque_weak);
-  // Using the same parameters as in the RNG test cases.
-  std::mersenne_twister<
-    unsigned long, 32, 624, 397, 31,
-    0x9908b0dful, 11, 7,
-    0x9d2c5680ul, 15,
-    0xefc60000ul, 18> rng;
-  wp_vector_t::iterator cur_weak = weak_pool.begin();
-
-  for (unsigned int i = 0; i < HAMMER_REPEAT; ++i)
-    {
-      try
-      {
-        sp_A_t strong(*cur_weak);
-      }
-      catch (std::bad_weak_ptr& exception)
-      {
-        ++cur_weak;
-        if (cur_weak == weak_pool.end())
-          break;
-      }
-    }
-  return 0;
-}
-
-int
-test01()
-{
-  bool test __attribute__((unused)) = true;
-  sp_vector_t obj_pool(POOL_SIZE);
-  
-  for(sp_vector_t::iterator cur = obj_pool.begin(); cur != obj_pool.end(); ++cur)
-  {
-    cur->reset(new A);
-  }
-  // Obtain weak references.
-  std::vector<wp_vector_t> weak_pool(HAMMER_MAX_THREADS, wp_vector_t(obj_pool.begin(), obj_pool.end()));
-  
-  // Launch threads with pointer to weak reference.
-  pthread_t threads[HAMMER_MAX_THREADS];
-#if defined(__sun) && defined(__svr4__) && _XOPEN_VERSION >= 500
-  pthread_setconcurrency (HAMMER_MAX_THREADS);
-#endif
-  
-  pthread_attr_t tattr;
-  pthread_attr_init(&tattr);
-
-  shared_and_weak_pools pools(obj_pool, weak_pool[0]);
-  pthread_create(threads, &tattr, thread_hammer_and_kill, static_cast<void*>(&pools));
-  for (unsigned int worker = 1; worker < HAMMER_MAX_THREADS; worker++)
-    {
-      if (pthread_create(&threads[worker], &tattr,
-			 thread_hammer, static_cast<void*>(&weak_pool[worker])))
-	std::abort();
-    }
-  // Wait for threads to complete, then check integrity of reference.
-  void* status;
-  for (unsigned int worker = 0; worker < HAMMER_MAX_THREADS; worker++)
-    {
-      if (pthread_join(threads[worker], &status))
-	std::abort();
-    }
-  obj_pool.clear();
-  
-  VERIFY( A::counter == 0 );
-  
-  return 0;
-}
-
-int 
-main()
-{
-  test01();
-  return 0;
-}