/sys$common/syshlp/helplib.hlb CC, Messages, FLOATTOINT  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 Message        <Context> "<expr>" is being converted from <type>
                type to int type.

 Description    The C language requires that this expression be of
                integer type.  In most cases the compiler will emit
                an error for this case.  In VAX C mode, the compiler
                emits this warning and converts the expression to int
                type.  This matches the behavior of VAX C.

 User Action    If the VAX C behavior is what you intended, cast the
                expression to int to silence the diagnostic.
                Otherwise, recode the expression to reflect your
                intent.