Re: [boost] [modularization] mpl -> utility dependency

Subject: Re: [boost] [modularization] mpl -> utility dependency
From: Andrey Semashev (andrey.semashev_at_[hidden])
Date: 2014-06-08 13:56:03

On Sunday 08 June 2014 19:51:12 Vicente J. Botet Escriba wrote:
> The dependency mpl -> utility
> 
> |<boost/utility/value_init.hpp>|
> 
>      from |<boost/mpl/for_each.hpp>|||
> 
> |is there just for this line
> 
>          // dwa 2002/9/10 -- make sure not to invoke undefined behavior
>          // when we pass arg.
>          value_initialized<arg> x;
> 
> Do we really need to use this value_initialized class to ensure
> initialization with current compilers?

Surprisingly, even some fairly recent compilers don't implement value 
initialization properly. See comments in value_init.hpp and relevant macros in 
Boost.Config.