[Boost-bugs] [Boost C++ Libraries] #12469: BOOST_MPL_PRINT_HPP generates error: negative integral constant converted to unsigned type

Subject: [Boost-bugs] [Boost C++ Libraries] #12469: BOOST_MPL_PRINT_HPP generates error: negative integral constant converted to unsigned type
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2016-09-20 14:17:27

#12469: BOOST_MPL_PRINT_HPP generates error: negative integral constant converted
to unsigned type
------------------------------+---------------------------
 Reporter:  anonymous         |      Owner:  ramey
     Type:  Bugs              |     Status:  new
Milestone:  To Be Determined  |  Component:  serialization
  Version:  Boost 1.61.0      |   Severity:  Showstopper
 Keywords:                    |
------------------------------+---------------------------
 Hi, serialization in win32 generates compile error in VS2015. The error
 is:
 c:\program files\boost\boost_1_61_0\boost\mpl\print.hpp(52): error C4308:
 negative integral constant converted to unsigned type

 {{{
 #elif defined(BOOST_MSVC)
     enum { n = sizeof(T) + -1 };
 #elif defined(__MWERKS__)
 }}}

 And ultimately this was triggered by:


 {{{
 private:
         // the range of the output hashed variable
         size_t mWidth;
         size_t mPrime;
         size_t mKindependent;

         std::shared_ptr<std::vector<size_t> > mpCoefficients;

         friend class boost::serialization::access;

         template<class Archive>
         void serialize(Archive & ar, const unsigned int version)
         {
                 ar & mPrime ; ar & mKindependent ; ar & mpCoefficients ;
 ar & mWidth;
         }
 }}}

 All works in 64 bit mode.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/12469>
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