Re: stl template for ATL::CWindow

From:
"Alexander Nickolov" <agnickolov@mvps.org>
Newsgroups:
microsoft.public.vc.atl
Date:
Wed, 14 Jun 2006 15:08:42 -0700
Message-ID:
<#WxIa8$jGHA.3572@TK2MSFTNGP04.phx.gbl>
While we are at it, a better class would be boost::scoped_array.
Assuming you are using Boost that is...

--
=====================================
Alexander Nickolov
Microsoft MVP [VC], MCSD
email: agnickolov@mvps.org
MVP VC FAQ: http://www.mvps.org/vcfaq
=====================================

"PaulH" <paul.heil@gmail.com> wrote in message
news:1150305206.143615.254420@g10g2000cwb.googlegroups.com...

That's an incredibly unfortunate bit of knowlege... I'm going to have
to fix a lot of programs now. But thanks for the tidbit!

-PaulH

Igor Tandetnik wrote:

paul.heil@gmail.com wrote:

       std::auto_ptr<TCHAR> txt(new TCHAR[len + 1]);


You should not be using auto_ptr to hold an array. What was allocated
with new[] must be deleted with delete[], as in

TCHAR* p = new TCHAR[len + 1];
delete[] p;

Of course auto_ptr doesn't know this and uses regular delete. It works
with VC compiler, but only by accident.

Consider using std::vector instead:

std::vector<TCHAR> vbuf(len + 1);
TCHAR* pbuf = &vbuf.front(); // pointer into vector's internal data
buffer
// vbuf automatically frees the buffer when going out of scope

--
With best wishes,
    Igor Tandetnik

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necessarily a good idea. It is hard to be sure where they are going to
land, and it could be dangerous sitting under them as they fly
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