hash-table.lisp

(cl:in-package #:incf-cl)

;;; Copyright (c) 2007-2019 Juan M. Bello Rivas <jmbr@superadditive.com>
;;;
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;;; of the Software, and to permit persons to whom the Software is
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;;;
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(defmacro dohash ((key value hash-table &optional (result-form nil))
                  &body body)
  "DOHASH iterates over the keys and values of HASH-TABLE.  It returns
NIL or the result of evaluating RESULT-FORM if it was specified."
  `(loop
      for ,key being each hash-key in ,hash-table using (hash-value ,value) do
      (progn
        ,@body)
      finally (return ,result-form)))