[Boost-bugs] [Boost C++ Libraries] #6953: Cannot serialialize some double values

Subject: [Boost-bugs] [Boost C++ Libraries] #6953: Cannot serialialize some double values
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2012-05-30 15:42:27

#6953: Cannot serialialize some double values
------------------------------+---------------------------------------------
 Reporter:  dbaciu@…          |       Owner:  ramey        
     Type:  Bugs              |      Status:  new          
Milestone:  To Be Determined  |   Component:  serialization
  Version:  Boost 1.43.0      |    Severity:  Problem      
 Keywords:  serialization     |  
------------------------------+---------------------------------------------
 Hi,

 The code sample below throws a "stream error" exception at line

 ia >> double_back;

 My development environment is Visual Studio 10, boost version 1.43. Sorry,
 I have not tried a newer version of boost.

 The binary archive does not seem to handle doubles with lots of decimal
 places.

 #include <boost/archive/binary_oarchive.hpp>
 #include <boost/archive/binary_iarchive.hpp>



 void dummy()
         {

                 string filename = "dummy.data";

                 double someDouble = 0.98123024735605502;

                 {
                         std::ofstream ofs;
                         ofs.open(filename.c_str());
                         boost::archive::binary_oarchive oa(ofs);
                         oa << someDouble;
                 }

                 double double_back;
                 {
                         std::ifstream ifs;
                         ifs.open(filename.c_str());
                         boost::archive::binary_iarchive ia(ifs);
                         // following throws a "stream error" exception
                         ia >> double_back;
                 }

         }

 Thanks,

 Dragos

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/6953>
Boost C++ Libraries <http://www.boost.org/>
Boost provides free peer-reviewed portable C++ source libraries.