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    Length: 2958 (0xb8e)
    Types: TextFile
    Names: »vector.scm.19«

└─⟦a0efdde77⟧ Bits:30001252 EUUGD11 Tape, 1987 Spring Conference Helsinki
    └─⟦this⟧ »EUUGD11/gnu-31mar87/scheme/scm/vector.scm.19« 

TextFile

;;; -*-Scheme-*-
;;;
;;;	Copyright (c) 1984 Massachusetts Institute of Technology
;;;
;;;	This material was developed by the Scheme project at the
;;;	Massachusetts Institute of Technology, Department of
;;;	Electrical Engineering and Computer Science.  Permission to
;;;	copy this software, to redistribute it, and to use it for any
;;;	purpose is granted, subject to the following restrictions and
;;;	understandings.
;;;
;;;	1. Any copy made of this software must include this copyright
;;;	notice in full.
;;;
;;;	2. Users of this software agree to make their best efforts (a)
;;;	to return to the MIT Scheme project any improvements or
;;;	extensions that they make, so that these may be included in
;;;	future releases; and (b) to inform MIT of noteworthy uses of
;;;	this software.
;;;
;;;	3.  All materials developed as a consequence of the use of
;;;	this software shall duly acknowledge such use, in accordance
;;;	with the usual standards of acknowledging credit in academic
;;;	research.
;;;
;;;	4. MIT has made no warrantee or representation that the
;;;	operation of this software will be error-free, and MIT is
;;;	under no obligation to provide any services, by way of
;;;	maintenance, update, or otherwise.
;;;
;;;	5.  In conjunction with products arising from the use of this
;;;	material, there shall be no use of the name of the
;;;	Massachusetts Institute of Technology nor of any adaptation
;;;	thereof in any advertising, promotional, or sales literature
;;;	without prior written consent from MIT in each case.
;;;

;;;; Operations on Vectors

(declare (usual-integrations))
\f


(define vector-cons (make-primitive-procedure 'VECTOR-CONS))
(define vector-size (make-primitive-procedure 'VECTOR-SIZE))
(define vector-ref (make-primitive-procedure 'VECTOR-REF))
(define vector-set! (make-primitive-procedure 'VECTOR-SET!))
(define list->vector (make-primitive-procedure 'LIST->VECTOR))
(define subvector->list (make-primitive-procedure 'SUBVECTOR->LIST))
(define vector? (microcode-type-predicate 'VECTOR))

(define (vector . elements)
  (list->vector elements))

(define (vector->list vector)
  (subvector->list vector
		   0
		   (vector-size vector)))

(define (make-initialized-vector size initialization)
  (let ((vector (vector-cons size '())))
    (let loop ((n 0))
      (if (= n size)
	  vector
	  (sequence (vector-set! vector n (initialization n))
		    (loop (1+ n)))))))

(define (vector-copy vector)
  (make-initialized-vector (vector-size vector)
    (lambda (n)
      (vector-ref vector n))))

(define (vector-first vector) (vector-ref vector 0))
(define (vector-second vector) (vector-ref vector 1))
(define (vector-third vector) (vector-ref vector 2))
(define (vector-fourth vector) (vector-ref vector 3))
(define (vector-fifth vector) (vector-ref vector 4))
(define (vector-sixth vector) (vector-ref vector 5))
(define (vector-seventh vector) (vector-ref vector 6))
(define (vector-eighth vector) (vector-ref vector 7))