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POc++ boost serialization with stringstream
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  1. POc++ boost serialization with stringstream
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    copied!<p>I am new to boost and c++ and is attempting to serialize an object to binary and then unserialize it.</p> <p>I'm using the classes from the example in: <a href="http://en.highscore.de/cpp/boost/serialization.html" rel="noreferrer">http://en.highscore.de/cpp/boost/serialization.html</a></p> <p>So suppose this is the class I am trying to serialize: </p> <pre><code>class person { public: person() { } person(int age) : age_(age) { } int age() const { return age_; } private: friend class boost::serialization::access; template &lt;typename Archive&gt; void serialize(Archive &amp;ar, const unsigned int version) { ar &amp; age_; } int age_; }; </code></pre> <p>This is the serialization code: </p> <pre><code>const char * save(Object ss) { boost::archive::binary_oarchive oa(ss); person p(31); oa &lt;&lt; p; return ss.str().data(); } </code></pre> <p>This is the unserialization code:</p> <pre><code>void load(const char * str) { stringstream s; s &lt;&lt; str; boost::archive::binary_iarchive ia(s); person p; ia &gt;&gt; p; std::cout &lt;&lt; p.age() &lt;&lt; std::endl; } </code></pre> <p>When I attempt to run this code, I receive this error:</p> <pre><code>terminate called after throwing an instance of 'boost::archive::archive_exception' what(): stream error </code></pre> <p>Which brings me to ask, is there a proper way of doing this? </p> <p>Thanks, much appreciated. </p> <p>EDIT: This version works: </p> <p>This is the serialization code: </p> <pre><code>string save() { boost::archive::binary_oarchive oa(ss); person p(31); oa &lt;&lt; p; return ss.str(); } </code></pre> <p>This is the unserialization code:</p> <pre><code>void load(string str) { stringstream s; s &lt;&lt; str; boost::archive::binary_iarchive ia(s); person p; ia &gt;&gt; p; std::cout &lt;&lt; p.age() &lt;&lt; std::endl; } </code></pre> <p>EDIT2: This version does not work. Would appreciate comments on a fix. Thanks.</p> <pre><code>void Serialization::save() { stringstream ss; { boost::archive::binary_oarchive oa(ss); person p(31); oa &lt;&lt; p; } const char * temp1 = ss.str().data(); stringstream s; s &lt;&lt; temp1; cout &lt;&lt; "UNSERIALIZING\n"; boost::archive::binary_iarchive ia(s); person p1; ia &gt;&gt; p1; std::cout &lt;&lt; p1.age() &lt;&lt; std::endl; } </code></pre>
 

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