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     Compiler error C2217
 
     'attribute1' must be used with 'attribute2'
 
     The first function attribute requires the use of the second
     attribute.
 
     Some causes for this error include:
 
        ■ An interrupt function explicitly declared as near. Interrupt
          functions must be declared as far.
 
        ■ An interrupt function that is declared with the __fortran,
          __pascal, or __fastcall attribute. Functions declared with
          the __interrupt attribute must use  C calling conventions.
 
        ■ A function with a variable number of parameters that is
          declared with the __fortran, __pascal, or __fastcall
          attribute. These functions must use C calling conventions.
          Remove the __fortran, __pascal, or __fastcall attribute from
          the function declaration.
                                    -♦-