#| Copyright 2024 Peter McGoron
 |
 | 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.
 |#

(define-library (mcgoron weight-balanced-trees test util)
  (import (scheme base) (srfi 158) (srfi 26))
  (export vector-copy-exclusive)
  (begin
    (define (vector-copy-exclusive vec start end)
      ;; Copy `start,end` (start inclusive end exclusive) from `vec`.
      (if (= start end)
          #()
          (vector-copy vec start (- end 1))))
    (define (boolean-equivalent? x y)
      (boolean=? (not (not x)) (not (not y))))))