Re: [boost] [utility] Proposal MSVC workaround for value_initialized - Ticket #1217

From: David Abrahams (dave_at_[hidden])
Date: 2007-08-29 09:30:00

on Tue Aug 28 2007, "Niels Dekker - mail address until 2008-12-31" <nd_mail_address_valid_until_2008-12-31-AT-xs4all.nl> wrote:

> Fernando Cacciola and I developed a new version of value_init.hpp, 
> offering a workaround. The file is attached to the ticket: 
> http://svn.boost.org/trac/boost/attachment/ticket/1217/value_init_MSVC_workaround.hpp
>
> The workaround version stores the bytes of the T object that is wrapped 
> by value_initialized<T> as an instance of aligned_storage::type. During 
> the construction of value_initialized<T>, it clears the bytes of T 
> (using memset), just before constructing T itself, by placement new:
>
>   std::memset(&x, 0, sizeof(x)); new (&x) T();
>
> The workaround is enabled by defining a macro, 
> BOOST_UTILITY_VALUE_INIT_WORKAROUND.
>
> As I never contributed to a Boost library before, what should I do in 
> order to get this workaround reviewed, and hopefully get it into the 
> library?

Thanks for your work on this!  I think Fernando is entirely qualified
to review it, and he has commit privileges on the repository, so I've
reassigned the ticket to him.

-- 
Dave Abrahams
Boost Consulting
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