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    <p>You need to package or encapsulate your data into objects and to serialize them out, as Mark pointed it out using <a href="http://www.boost.org/doc/libs/1_49_0/libs/serialization/doc/index.html" rel="nofollow">http://www.boost.org/doc/libs/1_49_0/libs/serialization/doc/index.html</a>. You can find examples and detailed help there. Search for a very simple case. :)</p> <p>Edit: I have done for you a quick and dirty example. Enjoy. (Apologies for the formatting.)</p> <pre><code>#include &lt;cstddef&gt; // NULL #include &lt;iomanip&gt; #include &lt;iostream&gt; #include &lt;fstream&gt; #include &lt;iterator&gt; #include &lt;boost/archive/text_iarchive.hpp&gt; #include &lt;boost/archive/text_oarchive.hpp&gt; #include &lt;boost/serialization/base_object.hpp&gt; #include &lt;boost/serialization/utility.hpp&gt; #include &lt;boost/serialization/assume_abstract.hpp&gt; #include &lt;boost/serialization/string.hpp&gt; #include &lt;boost/serialization/vector.hpp&gt; class family_names { friend class boost::serialization::access; std::vector&lt;std::string&gt; m_names; template&lt;class Archive&gt; void serialize(Archive &amp; ar, const unsigned int version) { ar &amp; m_names; } friend std::ostream &amp; operator&lt;&lt;(std::ostream &amp;os, const family_names&amp; fn); public: family_names(const std::vector&lt;std::string&gt;&amp; names) : m_names(names) {} family_names() {} }; std::ostream &amp; operator&lt;&lt;(std::ostream &amp;os, const family_names&amp; fn) { std::ostream_iterator&lt;std::string&gt; out_it (std::cout,", "); std::copy(fn.m_names.begin(), fn.m_names.end(), out_it); return os; } void save(const family_names &amp;s, const char * filename){ // make an archive std::ofstream ofs(filename); boost::archive::text_oarchive oa(ofs); oa &lt;&lt; s; } void restore(family_names &amp;s, const char * filename) { // open the archive std::ifstream ifs(filename); boost::archive::text_iarchive ia(ifs); // restore the family names from the archive ia &gt;&gt; s; } int _tmain(int argc, _TCHAR* argv[]) { std::vector&lt;std::string&gt; vec_names; vec_names.push_back("Jason"); vec_names.push_back("Mark"); vec_names.push_back("Ludmilla"); family_names names(vec_names); std::string filename = "c:\\Dev\\demofile.txt"; std::cout &lt;&lt; names &lt;&lt; std::endl; save(names, filename.c_str()); family_names names_back; restore(names_back, filename.c_str()); std::cout &lt;&lt; names_back &lt;&lt; std::endl; return 0; } </code></pre>
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    1. COCool. Thank you -- I haven't really done anything with boost, but I will have to check it out.
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    2. COYou're welcome.
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