Boost logo

Boost Users :

Subject: Re: [Boost-users] How to choose which library version to choose?
From: Jeff Flinn (jeffrey.flinn_at_[hidden])
Date: 2013-10-10 07:54:38

On 10/9/2013 5:54 PM, Michael Kragh Pedersen wrote:
> Michael, I've thought about the non-intrusive way too, but I can't use
> that as it doesn't work with private members from what I've understood.
> I did however try to remove the namespace from my code, which works, but
> then gives me the same error for forward_list and bitset, and from what
> I've read in the documentation, the STL collections should already have
> serialize methods within the boost library.
> -----Original Message----- From: Michael Powell
> Sent: Wednesday, October 09, 2013 7:41 PM
> To: boost-users_at_[hidden]
> Subject: Re: [Boost-users] How to choose which library version to choose?
> On Wed, Oct 9, 2013 at 11:31 AM, Michael Kragh Pedersen
> <m_kragh_pedersen_at_[hidden]> wrote:
>> Thank you, George and Krzysztof. The reason I asked about this is that
>> I’m
>> getting an error when trying to implement serialize into my class, and I
>> thought this was due to the serialize template only being in one of the
>> serialization libraries, thinking they all had different functions. The
>> error I get is:
>> C:/boost_1_54_0/boost/serialization/access.hpp:118: undefined
>> reference to
>> `void
>> boinc::work::Sudoku::serialize<boost::archive::binary_oarchive>(boost::archive::binary_oarchive&,
>> unsigned int)'
>> Googling the error, I found this link:
>> Which mentions putting the definition into the header, which I’ve
>> tried, but
>> I still get the same error. So given the following code, can anyone
>> tell me
>> what I’m doing wrong?
> Here's a thought: in my experience integrating with facets of the
> boost library, dealt with Spirit Qi at some length, and Phoenix and so
> forth tend to want things navigable from the global (::) namespace, it
> can be sensitive to namespace issues. friend class
> boost::serialization::access may not be able to find ::boinc::Sudoku,
> for example.
> You might try non-intrusive serialization if that's an issue. Which is
> better SOLID style IMO anyway because it decouples the serialization
> know-how from the domain in the first place. Always a good thing; then
> the domain can update, the serialization could update, without either
> knowing the difference, necessarily.
>> #ifndef SUDOKU_HPP_
>> #define SUDOKU_HPP_
>> #include <boost/archive/binary_oarchive.hpp>
>> #include <boost/archive/binary_iarchive.hpp>
>> namespace boinc {
>> class Sudoku {
>> friend class boost::serialization::access;
>> private:
>> template<class Archive> void serialize(Archive &ar, const
>> unsigned int version) {
>> ...
>> }
>> };
>> }
>> }
>> #endif
>> I have been following the serialization tutorial here:

You might repost this with [serialization] in the subject, you'll
probably get more help.

That said can you actually build the example code?


Boost-users list run by williamkempf at, kalb at, bjorn.karlsson at, gregod at, wekempf at