\ mymath.fs - Arithmetic utilities
\
\ Copyright 2018 David Meyer <papa@sdf.org> +JMJ
\
\ Licensed under the Apache License, Version 2.0 (the "License");
\ you may not use this file except in compliance with the License.
\ You may obtain a copy of the License at
\
\     http://www.apache.org/licenses/LICENSE-2.0
\
\ Unless required by applicable law or agreed to in writing, software
\ distributed under the License is distributed on an "AS IS" BASIS,
\ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
\ See the License for the specific language governing permissions and
\ limitations under the License.
\

\ u** - power (x^y) for unsigned integers
: u** ( u1 u2 -- u1^u2 )
    1 swap 0 u+do over * loop nip ;