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re PR libstdc++/63456 (unordered_map incorrectly frees _M_single_bucket. Patch Included) 

2014-10-05  François Dumont  <fdumont@gcc.gnu.org>

	PR libstdc++/63456
	* include/bits/hashtable.h (_M_uses_single_bucket(__bucket_type*)): Test
	the parameter.
	* testsuite/23_containers/unordered_set/63456.cc: New.

From-SVN: r215905
This commit is contained in:
François Dumont 2014-10-05 18:44:46 +00:00
parent 29c43c83ef
commit e6fb44d878
3 changed files with 42 additions and 1 deletions
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7
libstdc++-v3/ChangeLog
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@ -1,3 +1,10 @@
2014-10-05 François Dumont <fdumont@gcc.gnu.org>
PR libstdc++/63456
* include/bits/hashtable.h (_M_uses_single_bucket(__bucket_type*)): Test
the parameter.
* testsuite/23_containers/unordered_set/63456.cc: New.
2014-10-03 Jonathan Wakely <jwakely@redhat.com> 2014-10-03 Jonathan Wakely <jwakely@redhat.com>
PR libstdc++/63449 PR libstdc++/63449

2
libstdc++-v3/include/bits/hashtable.h
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@ -326,7 +326,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
bool bool
_M_uses_single_bucket(__bucket_type* __bkts) const _M_uses_single_bucket(__bucket_type* __bkts) const
{ return __builtin_expect(_M_buckets == &_M_single_bucket, false); } { return __builtin_expect(__bkts == &_M_single_bucket, false); }
bool bool
_M_uses_single_bucket() const _M_uses_single_bucket() const

34
libstdc++-v3/testsuite/23_containers/unordered_set/63456.cc Normal file
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@ -0,0 +1,34 @@
// Copyright (C) 2014 Free Software Foundation, Inc.
//
// 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/>.
// { dg-options "-std=gnu++11" }
#include <unordered_set>
void test01()
{
std::unordered_set<int> s1, s2;
s2.insert(2);
s1 = s2;
}
int main()
{
test01();
return 0;
}