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

 Message        <Context> "<expression>", a 64-bit integer, is being
                assigned to a 32-bit integer.  Assignment might
                result in data loss.

 Description    On many platforms long integers are the same size as
                integers.  On this platform long integers are
                64-bits.  This assignment could indicate a potential
                porting problem.

 User Action    Verify that no unexpected data can be lost by the
                assignment.