Trevor Gross cc2874c9a9 Add scalbnf16, scalbnf128, ldexpf16, and ldexpf128
Use the generic `scalbn` to provide `f16` and `f128` versions, which
also work for `ldexp`.

This involves a new algorithm for `f16` because the default does not
converge fast enough with a limited number of rounds.
2025-02-05 13:37:54 +00:00
..