Hi Kangkook,<div><br></div><div>By removing the pointer in const string*, the code compiles. You have to investigate how Boost.Serialization handles pointers to stdlib classes:</div><div><br></div><div><meta http-equiv="content-type" content="text/html; charset=utf-8"><a href="http://www.boost.org/doc/libs/1_47_0/libs/serialization/doc/index.html">http://www.boost.org/doc/libs/1_47_0/libs/serialization/doc/index.html</a></div>
<div><br></div><div>I never tried to serialize a string* nor any pointer to a stdlib class before. Although i know it&#39;s possible to use pointers for base classes polymorphically. Serializing a string* shouldn&#39;t be a problem, i guess.</div>
<div><br></div><div>Regards,</div><div>Júlio.</div><div><br><div class="gmail_quote">2011/9/20 Kangkook Jee <span dir="ltr">&lt;<a href="mailto:aixer77@gmail.com">aixer77@gmail.com</a>&gt;</span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div style="word-wrap:break-word"><div>The following is the code snippet that wouldn&#39;t get compiled. </div><div><br></div><div><div>#include &lt;iostream&gt;</div><div>#include &lt;fstream&gt;</div><div>#include &lt;map&gt;</div>
<div>#include &lt;string&gt;</div><div><br></div><div>#include &lt;boost/archive/text_oarchive.hpp&gt;</div><div>#include &lt;boost/archive/text_iarchive.hpp&gt;</div><div><br></div><div>#include &lt;boost/serialization/map.hpp&gt;</div>
<div>#include &lt;boost/serialization/set.hpp&gt;</div><div>#include &lt;boost/serialization/string.hpp&gt;</div><div><br></div><div><br></div><div>using namespace std;</div><div><br></div><div>class B {</div><div>  //private attributes</div>
<div class="im"><div>  map&lt;const string* , set&lt;unsigned&gt; &gt; lines;</div><div>  </div></div><div>  //serialization</div><div>  friend class boost::serialization::access;</div><div class="im"><div><br></div><div>
  template&lt;class Archive&gt; </div><div>  void serialize (Archive &amp; ar, const unsigned int version) {</div><div>    ar &amp; lines;</div><div>  }</div><div><br></div><div><br></div></div><div>public:</div><div>  B() {}</div>
<div>};</div><div><br></div><div>main (int argc, char* argv[]) {</div><div><br></div><div>  string fname(argv[1]);</div><div><br></div><div>  B b0;</div><div><br></div><div>  std::ofstream ofs (fname.c_str());</div><div>  boost::archive::text_oarchive oa(ofs);</div>
<div>  oa &lt;&lt; b0;</div><div>  ofs.close();</div><div>  </div><div>  std::ifstream ifs(fname.c_str());</div><div>  boost::archive::text_iarchive ia(ifs);</div><div>  ia &gt;&gt; b0;</div><div>  ifs.close();</div><div>
  </div><div>  return 0;</div><div>}</div></div></div></blockquote></div></div>