From: Chris Hanson <org/chris-hanson/cph>
Date: Mon, 10 Feb 1992 21:57:09 +0000 (+0000)
Subject: Change BUFFER-VISIBLE? to mean that buffer is shown in a window that
X-Git-Tag: 20090517-FFI~9811
X-Git-Url: https://birchwood-abbey.net/git?a=commitdiff_plain;h=366744b2a2f4257f3c3447258810fdd99905fc46;p=mit-scheme.git

Change BUFFER-VISIBLE? to mean that buffer is shown in a window that
is visible.
---

diff --git a/v7/src/edwin/buffer.scm b/v7/src/edwin/buffer.scm
index 20271138c..743de22cf 100644
--- a/v7/src/edwin/buffer.scm
+++ b/v7/src/edwin/buffer.scm
@@ -1,6 +1,6 @@
 ;;; -*-Scheme-*-
 ;;;
-;;;	$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/edwin/buffer.scm,v 1.151 1992/02/04 04:01:29 cph Exp $
+;;;	$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/edwin/buffer.scm,v 1.152 1992/02/10 21:57:09 cph Exp $
 ;;;
 ;;;	Copyright (c) 1986, 1989-92 Massachusetts Institute of Technology
 ;;;
@@ -229,8 +229,8 @@ The buffer is guaranteed to be deselected at that time."
 (define-integrable (set-buffer-display-start! buffer mark)
   (vector-set! buffer buffer-index:display-start mark))
 
-(define-integrable (buffer-visible? buffer)
-  (not (null? (buffer-windows buffer))))
+(define (buffer-visible? buffer)
+  (there-exists? (buffer-windows buffer) window-visible?))
 
 (define (buffer-get buffer key)
   (let ((entry (assq key (vector-ref buffer buffer-index:alist))))