position of virtual keyword in function declaration

Question

Does it make any difference whether I place the virtual keyword in a function declaration before or after the return value type?

virtual void DoSome         


        

Answer 1

Both the formats work but the standard specifys the first format.

Reference:
C++03 7.1 Specifiers

The specifiers that can be used in a declaration are

   decl-specifier:
         storage-class-specifier
         type-specifier
         function-specifier
         friend
         typedef

     decl-specifier-seq:
           decl-specifier-seqopt decl-specifier

And further function-specifier are explained in,

7.1.2 Function specifiers

Function-specifiers can be used only in function declarations.

 function-specifier:
     inline
     virtual
     explicit