Marius Vollmer <mvo@zagadka.de> writes:
>
> That's what I think, too.

        * numbers.c (scm_max, scm_min): For inum, bignum and real, if other
        operand is NaN, then return NaN.  Also avoid passing NaN to mpz_cmp_d.

        * tests/numbers.test (max, min): Add tests involving NaNs.

Some cases just need the sense of the > or < test put the right way to
allow for it being false when involving a NaN.  A couple are right
already.  For bignums and for real/real an actual isnan is necessary.