Re: Thread deadlock misery

From:
"Ben Voigt" <rbv@nospam.nospam>
Newsgroups:
microsoft.public.vc.language
Date:
Tue, 13 Mar 2007 12:49:21 -0500
Message-ID:
<eCut8eZZHHA.2432@TK2MSFTNGP03.phx.gbl>
"Tamas Demjen" <tdemjen@yahoo.com> wrote in message
news:%23pymAYZZHHA.1388@TK2MSFTNGP05.phx.gbl...

Ben Voigt wrote:

  std::vector< char > buffer( pATFP->TFP.size );
  WSABUF wsaBuf = { pATFP->TFP.size, &buffer.front() };


I don't know if that's guaranteed to be contiguous memory


Stroustrup suggests that it is contiguous. Interesting discussion here:
http://www.velocityreviews.com/forums/t281876-is-stdvector-contiguous.html

The original standard didn't explicitly state contiguity, but it has been
corrected since then, and now it is an explicit guarantee. Besides, there
is no known implementation of vector where memory is not contiguous.

, better to use:

std::auto_ptr buffer = new char[TFP.size];


This works with every compiler that I tried, but strictly speaking, it's
not correct. auto_ptr calls delete, not delete [], and therefore it is not
guaranteed to work. I personally use boost::scoped_array, it's extremely
lightweight and is guaranteed to be correct:

boost::scoped_ptr<char> buffer(new char[size]);

I think its c'tor is explicit, you can't use assignment there.


You're right about that. scoped_array is much better. Wouldn't your use of
scoped_ptr suffer the same problem as auto_ptr?

Tom

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