Important Notice

The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

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     Compiler error C2571
 
     'identifier' : union cannot have virtual function 'identifier'
 
     The specified union was declared to have a virtual function.
 
     Virtual functions can only be used with a class or structure but
     not with a union.  Change the specified union to a class or
     structure or make it a nonvirtual function.
                                    -♦-