From: Richard M. Stallman <rms@gnu.org>
Date: Sun, 12 Aug 2001 21:18:06 +0000 (+0000)
Subject: Add bool-vector example.
X-Git-Tag: emacs-pretest-21.0.105~207
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=5785f550ab79aa26746a8cce2f23fc6c6d611d97;p=emacs.git

Add bool-vector example.
---

diff --git a/lispref/sequences.texi b/lispref/sequences.texi
index 4228a79c576..f6869f1da8c 100644
--- a/lispref/sequences.texi
+++ b/lispref/sequences.texi
@@ -703,3 +703,22 @@ This returns @code{t} if @var{object} is a bool-vector,
 and @code{nil} otherwise.
 @end defun
 
+  Here is an example of creating, examining, and updating a
+bool-vector.  Note that the printed form represents up to 8 boolean
+values as a single character.
+
+@example
+(setq bv (make-bool-vector 5 t))
+     @result{} #&5"^_"
+(aref bv 1)
+     @result{} t
+(aset bv 3 nil)
+     @result{} nil
+bv
+     @result{} #&5"^W"
+@end example
+
+@noindent
+These results make sense because the binary codes for control-_ and
+control-W are 11111 and 10111, respectively.
+