Re: [Boost-users] Convert boost::shared_ptr to std::shared_ptr for boost::dll::import

Subject: Re: [Boost-users] Convert boost::shared_ptr to std::shared_ptr for boost::dll::import
From: Edward Diener (eldiener_at_[hidden])
Date: 2018-04-13 12:24:31

On 4/13/2018 2:58 AM, Stian Zeljko Vrba via Boost-users wrote:
> What?! Good to know because it seems the friction between boost and its 
> std counterparts (also with error_code, etc.) is steadily growing.
> 
> Knowing that, I'll have a much lower threshold for _not_ choosing boost 
> when evaluating libraries.

The reason some libraries use boost::shared_ptr rather than 
std::shared_ptr has nothing to do with supporting VC7.1 at all. The most 
obvious reason is that a given library works with code at the c++03 
level and does not require c++11 on up. You may feel that this is wrong, 
but this is another issue entirely than still having to support VC7.1.

I offered a preprocessor based solution to supporting std::shared_ptr 
when it was available as opposed to boost::shared_ptr, along with the 
same sort of choice between other boost libraries and their c++ standard 
library counterparts, in my CXX Dual library at 
https://github.com/eldiener/cxx_dual. But it was not a popular solution 
for other Boost library developers and so almost nobody in Boost was 
interested in it. I still feel it is an eminently workable solution to 
the sort of problem which started this e-mail. But of course it is up to 
the individual library developer to decide what he wants to support.

> 
> 
> -- Stian
> 
> 
> 
> ------------------------------------------------------------------------
> *From:* Boost-users <boost-users-bounces_at_[hidden]> on behalf of 
> degski via Boost-users <boost-users_at_[hidden]>
> *Sent:* Thursday, April 12, 2018 11:11 PM
> *To:* boost-users_at_[hidden]
> *Cc:* degski
> *Subject:* Re: [Boost-users] Convert boost::shared_ptr to 
> std::shared_ptr for boost::dll::import
> On 12 April 2018 at 13:48, David Demelier via Boost-users 
> <boost-users_at_[hidden] <mailto:boost-users_at_[hidden]>> wrote:
> 
>     It looks like for some reasons that it still use boost::shared_ptr
>     instead of std::shared_ptr even though C++11 is 7 years old.
> 
> 
> Boost needs to support (a.o.) VC7.1 till eternity (needs to run on 
> WinXP), so this will stay this way forever... "We don't support VC7.1" 
> or "Move on", is NOT an option in 2018 as far as Boost is concerned.
> 
> degski