[PATCH] round-ash, a rounding arithmetic shift operator

[Mark H Weaver]

The first patch is trivial, but there for the sake of correctness.
The second patch adds round-ash, a rounding arithmetic shift operator.

  (round-ash n count) ==> (round (* n (expt 2 count)))

but it's implemented much more efficiently than that, and requires that
both n and count are exact integers.  It cannot be implemented very
efficiently in scheme, and I needed it to normalize floating-point
significands using the default IEEE rounding mode.  I think it probably
has wider utility.  It would be great to have it in 2.0.  Any chance?

     Mark

0001-Fix-comment-above-number-theoretic-division-tests.patch
Description: Fix comment above number-theoretic division tests

0002-Add-round-ash-a-rounding-arithmetic-shift-operator.patch
Description: Add `round-ash', a rounding arithmetic shift operator