7.4.1 LO_Packer Example

The following example, taken from profile.cc and profile.h, shows a packer object being used to write an integer and an object derived from LObject to a file.

       LO_Packer packer;
       LO_Stream_File l_stream_file;
       LO_Stream_Null l_stream_null;
     
       l_stream_file.error = _fatal;
       packer.set_stream(&l_stream_file);
     
       l_stream_file.open(profile_file_path,O_WRONLY,00644);
     
       int i;
     
       // Packer converts the integer to a stream of characters itself.
       packer << i;
     
       PStack mystack;   // Note: PStack is derived from LObject.
     
       // Since PStack derived from LObject, packer will call mystack.self_pack.
       packer << mystack;