;; This library is deprecated, occurring in early R7RS drafts before ;; being removed. (define-library (scheme division) (import (scheme)) (export ceiling-quotient ceiling-remainder ceiling/ centered-quotient centered-remainder centered/ euclidean-quotient euclidean-remainder euclidean/ floor-quotient floor-remainder floor/ round-quotient round-remainder round/ truncate-quotient truncate-remainder truncate/) ;; The second definition is always valid, but the first is simpler ;; and faster if exact ratios are supported and handled correctly ;; but floor/ceil/round. (cond-expand (ratios (begin (define-syntax copy-exactness2 (syntax-rules () ((copy-exactness2 src1 src2 expr) expr))))) (else (begin (define-syntax copy-exactness2 (syntax-rules () ((copy-exactness2 src1 src2 expr) (let ((tmp expr)) (if (and (exact? src1) (exact? src2)) (inexact->exact tmp) tmp)))))))) (include "division.scm"))