Its time to wrap up SRFI-70.
As with my other SRFIs, the Issues section generates no discussion,
even though it has the issues I consider unsettled.
Given the vagueness of the term "flonum", the section 6.2.3 paragraphs
giving requirements for systems with flonums are not dangerous in
terms of preventing interesting implementations; and SRFI-70 doesn't
change them. It would be nice to improve it; but converting exact to
inexact is a thorny problem.