Re: EnterCriticalSection() is corrupting my heap

From:
"Arsalan Ahmad" <arsal__@hotmail.com>
Newsgroups:
microsoft.public.vc.language
Date:
Fri, 26 May 2006 12:54:51 +0200
Message-ID:
<OJSwRLLgGHA.4864@TK2MSFTNGP05.phx.gbl>
Why I dont need copy constructor is because of the fact that I am passing
pointer to CRITICAL_SECTION object and not the object itself;

CAutoLock::CAutoLock(CRITICALSECTION *pCS)
{
     m_pCS = pCS; // CRITICAL_SECTION *m_pCS
    EnterCriticalSection(m_pCS);
}

"Doug Harrison [MVP]" <dsh@mvps.org> wrote in message
news:v5ba7297fpn54cblgvb3eh7haf2gr55ln0@4ax.com...

On Thu, 25 May 2006 03:13:31 GMT, Norman Bullen
<norm@BlackKittenAssociates.com.INVALID> wrote:

Does your class have a copy constructor?

If it does, how does it initialize the critical section in the new object?

If it does not, how do you know that a default copy constructor has not
been generated? Add a _private_ copy constructor without any
implementation to the class declaration to prevent inadvertent use of a
generated copy constructor.


This is very good advice. The default should be to not support copying,
and
unfortunately, you have to enforce this yourself. Unless I consciously
decide a class should support copying, I start it off like this:

class X
{
private:

  // Copyguard
  X(const X&);
  void operator=(const X&);
};

--
Doug Harrison
Visual C++ MVP

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