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Date: Fri, 6 Oct 2006 05:39:19 -0700 (PDT)
From: "Farid Zaripov (JIRA)" <jira@apache.org>
To: stdcxx-dev@incubator.apache.org
Subject: [jira] Created: (STDCXX-297) std::bitset constructor addressed
 memory beyond the object
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std::bitset constructor addressed memory beyond the object
----------------------------------------------------------

                 Key: STDCXX-297
                 URL: http://issues.apache.org/jira/browse/STDCXX-297
             Project: C++ Standard Library
          Issue Type: Bug
          Components: 23. Containers
    Affects Versions: 4.1.3
         Environment: All
            Reporter: Farid Zaripov
            Priority: Trivial
             Fix For: 4.2


he program below fails:

------------------------------------------
#include <cassert>
#include <new>
#include <bitset>
#include <string>
#include <cstddef>
#include <string.h>

int main ()
{
    typedef std::bitset<128> BitSet;
    const std::size_t size = sizeof (BitSet);

    char buf [size + 4];
    memset (buf, '\xff', sizeof (buf));

    BitSet* btest = new (buf) BitSet (std::basic_string<int> ());

    for (std::size_t i = size; i < sizeof (buf); ++i)
        assert ('\xff' == buf [i]);

    btest->~BitSet ();

    return 0;
}
------------------------------------------
Assertion failed: '\xff' == buf [i], file test.cpp, line 19

This application has requested the Runtime to terminate it in an unusual way.
Please contact the application's support team for more information.
------------------------------------------


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