Re: [Boost-bugs] [Boost C++ Libraries] #10488: Compilation of serializing shared_ptr<const Object> fails

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #10488: Compilation of serializing shared_ptr<const Object> fails
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2014-10-29 10:10:38

#10488: Compilation of serializing shared_ptr<const Object> fails
-------------------------+-------------------------------------------------
  Reporter:              |      Owner:  ramey
  visa.jokelainen@…      |     Status:  closed
      Type:  Bugs        |  Component:  serialization
 Milestone:  To Be       |   Severity:  Regression
  Determined             |   Keywords:  shared_ptr serialization const
   Version:  Boost       |  compilation
  1.56.0                 |
Resolution:  duplicate   |
-------------------------+-------------------------------------------------

Comment (by reder <rouge.richard@…>):

 This is a regression. Not being able to serialize a shared_ptr<const
 Object> is indeed very painful. Ticket 3123 shows it is not absurd:
 imagine I have a


 {{{ typedef map<string,shared<book>> library; }}}


 Since I do not want people to write on the books, I'd prefer a


 {{{typedef map<string,shared<const book>> library;}}}


 and be able to write/load the contents of my library.

 Anyhow, it seems to be just a matter of changing line 59 of
 serialization/shared_ptr_helper.cpp from


 {{{
   SPT<void> // address shared ptr to single instance
 }}}


 to


 {{{
   SPT<const void> // address shared ptr to single instance
 }}}


 to regain previous behaviour (if one can check extensively).

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/10488#comment:4>
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