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POUnhandled exception at 0x5DF9CCC8
 

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  1. POUnhandled exception at 0x5DF9CCC8
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    <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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    1. PO
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      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. This table or related slice is empty.
    1. USBishoyM
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. COYou are writing a compound class like it were a POD. When writing your `string` object to the file, you are writing a pointer. Reading that back in will cause havoc.
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      1. POUnhandled exception at 0x5DF9CCC8
      1. USIInspectable
    2. COwell thanks , it worked when i removed string name
      singulars
      1. POUnhandled exception at 0x5DF9CCC8
      1. USBishoyM
 

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