Re: std::auto_ptr deprecation (Was: [release] Boost 1.74.0 Release Candidate 1)

From: Jeff Garland (azswdude_at_[hidden])
Date: 2020-08-11 14:07:44

On Tue, Aug 11, 2020 at 6:52 AM Stefan Seefeld via Boost <
boost_at_[hidden]> wrote:

> Hi all,
>
> On 2020-08-11 9:41 a.m., Jeff Garland via Boost wrote:
> > My compile report the RC:
> >
>
> Does boost have a mechanism (compilation flags, auto-defined macro,
> etc.) to mask `std::auto_ptr` usage ?
>
> Note that the situation isn't quite as simple as replacing
> library-internal use of `std::auto_ptr`. For example, in case of
> Boost.Python we also need to specialize templates so users can continue
> using `std::auto_ptr` in their own code, unless they explicitly (using
> macros) or implicitly (using modern compilers) disable such
> backward-compatible support. I suppose there are other Boost libraries
> in a similar situation.
>
>
Here's a sample of the warnings -- looks to me like the python case all the
warnings come from detail - so for modes past c++11 I'd think unique_ptr
could be used.  A macro for python could allow users to override the
removal and use auto_ptr in their code if they choose.  And this problem is
isolated to python and locale.

./boost/locale/localization_backend.hpp:116:59: warning: ‘template<class>
class std::auto_ptr’ is deprecated [-Wdeprecated-declarations]
./boost/locale/util.hpp:180:28: warning: ‘template<class> class
std::auto_ptr’ is deprecated [-Wdeprecated-declarations]
./boost/python/detail/is_auto_ptr.hpp:17:40: warning: ‘template<class>
class std::auto_ptr’ is deprecated [-Wdeprecated-declarations]
./boost/python/detail/is_auto_ptr.hpp:17:40: warning: ‘template<class>
class std::auto_ptr’ is deprecated [-Wdeprecated-declarations]

Jeff