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POUnhandled exception at 0x5DF9CCC8
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  1. POUnhandled exception at 0x5DF9CCC8
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    copied!<p>when i run this code everything goes fine when writing , but when i press 2 to read it goes well and read everything just fine but when it it finishes reading the file (show function) it pops up a problem says " Unhandled exception at 0x5DF9CCC8 " with break , continue options . from my searching i think the problem comes from a pointer points to Null , but i don't know how to resolve it . here is the code </p> <pre><code>class person{ public : string name; int id ; int age ; void person :: show(); void person :: add_menue(); void person :: insert_data(); void person :: show_data(); }; person personobject; void person :: add_menue() { cout &lt;&lt; "Please Enter Name ID Age :" &lt;&lt; endl; cin &gt;&gt; name &gt;&gt; id &gt;&gt; age ; } ofstream file; void person::show() { cout&lt;&lt;"Age =&gt; "&lt;&lt;age&lt;&lt;endl; cout&lt;&lt;"Name =&gt; "&lt;&lt;name&lt;&lt;endl; cout&lt;&lt;"ID =&gt; "&lt;&lt;id&lt;&lt;endl; } void person :: insert_data() { ofstream file; file.open("binary.dat",ios::app| ios::binary); personobject.add_menue(); file.write((char*)&amp;personobject, sizeof(personobject)); file.close(); } void person :: show_data() { ifstream file; file.open("binary.dat",ios::in| ios::binary); if(!file) { cout&lt;&lt;"File not Found"; } else { file.read((char*)&amp;personobject, sizeof(personobject)); while(!file.eof()) { personobject.show(); cout&lt;&lt;"Press Any Key....For Next Record"&lt;&lt;endl; getchar(); file.read((char*)&amp;personobject, sizeof(personobject)); } } file.close(); } void main () { int choice; cout &lt;&lt; "1 - to write \n2 - to read" &lt;&lt; endl; cin &gt;&gt; choice; if (choice==1) { person f; f.insert_data(); } if (choice==2) { person a; a.show_data(); system ("pause"); } } </code></pre>
 

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