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    <p>There is so much wrong with this code that I don't know where to start...</p> <ul> <li>use std::string</li> <li>use a std::map to associate int values with the strings. This will pretty much already do what you want.</li> <li>don't call the destructor for anything that was not new'd. To delete something use delete/delete[] and don't call the destructor directly. If you do use new, use the RAII idiom using managing objects such as std::unique_ptr or std::shared_ptr to avoid having to manually call delete/delete[] and to write exception safe code</li> </ul> <p>Here is a somewhat improved version. Notice that there is not a single call to new/delete.</p> <pre><code>#include &lt;iostream&gt; #include &lt;string&gt; #include &lt;map&gt; #include &lt;cstdio&gt; class list { public: explicit list( std::string n ) : name( n ) {} ~list() { std::cout &lt;&lt; "~list:" &lt;&lt; name &lt;&lt; std::endl; } void list::insert(int number, std::string const&amp; txt ){ items.insert( std::make_pair(number,txt)); } void list::remove(int number){ items.erase( number ); } void print( ){ std::cout &lt;&lt; name &lt;&lt; ";" &lt;&lt; std::endl; for( Items::const_iterator it = items.begin(), end = items.end(); it != end; ++it ) { std::cout &lt;&lt; "num: " &lt;&lt; it-&gt;first &lt;&lt; " | " &lt;&lt; "txt: " &lt;&lt; it-&gt;second &lt;&lt; std::endl; } std::cout &lt;&lt; std::endl; } private: typedef std::map&lt;int,std::string&gt; Items; Items items; std::string name; }; int main() { list l1( "lista1" ); l1.insert( 5, "Endian"); l1.insert( 7, "Endianness"); l1.insert( 100, "Hexediting"); l1.insert( 34, ".mil"); // extra scope so the destructor of l2 is called before call to getchar { list l2( l1 ); l2.remove( 5 ); l2.print(); } l1.print(); getchar(); return 0; } </code></pre>
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