Re: Thread deadlock misery

From:
Tamas Demjen <tdemjen@yahoo.com>
Newsgroups:
microsoft.public.vc.language
Date:
Tue, 13 Mar 2007 10:37:29 -0700
Message-ID:
<#pymAYZZHHA.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.

Tom

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