VMS Help CC, Messages, FLOATOVERFL  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 Message        <Context> floating-point overflow occurs in
                evaluating the expression "<expression>".

 Description    A floating-point overflow occurred while evaluating a
                constant expression.  The value of the expression is
                undefined.

 User Action    Correct the floating-point constant expression.