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Opened 2 years ago

Last modified 3 months ago

#11622 new Bugs

std::auto_ptr is deprecated

Reported by: anonymous Owned by: Peter Dimov
Milestone: To Be Determined Component: smart_ptr
Version: Boost 1.59.0 Severity: Cosmetic
Keywords: Cc: jack@…

Description

Hi,

I'm using Boost 1.59 and compiling a signals2 program using a new compiler: gcc 5.2.1.

My code is now littered with warnings!! warning: ‘template<class> class std::auto_ptr’ is deprecated

and indeed: Checking it here http://en.cppreference.com/w/cpp/memory/auto_ptr I see: "deprecated since C++11"

(Seems that std::unique_ptr is the favoured replacement.)

Here's the output of an online compiler: http://melpon.org/wandbox/permlink/7QyVTXZ51MVonsgv

Attachments (0)

Change History (8)

comment:1 Changed 2 years ago by anonymous

It's really driving me nuts.

The only way I'm keeping sane, is to use this compile flag:

-Wno-deprecated-declarations

comment:2 Changed 2 years ago by Frank Mori Hess

Component: signals2smart_ptr
Owner: changed from Frank Mori Hess to Peter Dimov

These warnings aren't coming (directly) from Boost.Signals2 they are coming from the smart pointers library.

comment:4 Changed 15 months ago by jack@…

Cc: jack@… added

Compiling Zcash with -Werror using Boost 1.62.0 (which includes the above fix), I still get this error:

In file included from /home/str4d/dev/zcash/zcash/depends/x86_64-unknown-linux-gnu/include/boost/spirit/home/classic/core/non_terminal/grammar.hpp:21:0,
                 from /home/str4d/dev/zcash/zcash/depends/x86_64-unknown-linux-gnu/include/boost/spirit/home/classic/core.hpp:42,
                 from /home/str4d/dev/zcash/zcash/depends/x86_64-unknown-linux-gnu/include/boost/spirit/include/classic_core.hpp:11,
                 from json/json_spirit_reader_template.h:19,
                 from asyncrpcoperation.h:20,
                 from asyncrpcqueue.h:8,
                 from asyncrpcqueue.cpp:5:
/home/str4d/dev/zcash/zcash/depends/x86_64-unknown-linux-gnu/include/boost/spirit/home/classic/core/non_terminal/impl/grammar.ipp: In member function ‘boost::spirit::classic::impl::grammar_helper<GrammarT, DerivedT, ScannerT>::definition_t& boost::spirit::classic::impl::grammar_helper<GrammarT, DerivedT, ScannerT>::define(const grammar_t*)’:
/home/str4d/dev/zcash/zcash/depends/x86_64-unknown-linux-gnu/include/boost/spirit/home/classic/core/non_terminal/impl/grammar.ipp:159:18: error: ‘template<class> class std::auto_ptr’ is deprecated [-Werror=deprecated-declarations]
             std::auto_ptr<definition_t>
                  ^
In file included from /usr/include/c++/5/memory:81:0,
                 from asyncrpcoperation.h:13,
                 from asyncrpcqueue.h:8,
                 from asyncrpcqueue.cpp:5:
/usr/include/c++/5/bits/unique_ptr.h:49:28: note: declared here
   template<typename> class auto_ptr;
                            ^

It seems that the fix applied to the smart pointers library needs to be expanded to all libraries that use auto_ptr.

comment:5 Changed 8 months ago by anonymous

still an issue in the 1.64.0 Release.

comment:6 Changed 8 months ago by Peter Dimov

The Spirit issue, or something in smart_ptr?

comment:7 Changed 3 months ago by nenad.miksa@…

libc++ v5 (available in AUR on ArchLinux?) does not have auto_ptr header anymore, if compiling with flag -std=gnu++1z, so this is now a compile error, not a warning anymore:

boost/include/boost/ptr_container/ptr_sequence_adapter.hpp:223:45: error: no type named 'auto_ptr' in namespace 'std'
        explicit ptr_sequence_adapter( std::auto_ptr<PtrContainer> clone )
                                       ~~~~~^

comment:8 Changed 3 months ago by anonymous

/usr/local/include/boost/statechart/processor_container.hpp:67:16: warning: 'template<class> class std::auto_ptr' is deprecated [-Wdeprecated-declarations]

typedef std::auto_ptr< processor_base_type > processor_holder_type;

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