[src/trunk]: src/lib/libcurses explain a non-portable behavior

[drochner <drochner%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/25b50fd3aa8b
branches:  trunk
changeset: 752212:25b50fd3aa8b
user:      drochner <drochner%NetBSD.org@localhost>
date:      Fri Feb 19 19:09:15 2010 +0000

description:
explain a non-portable behavior

diffstat:

 lib/libcurses/curses_line.3 |  14 +++++++++++++-
 1 files changed, 13 insertions(+), 1 deletions(-)

diffs (28 lines):

diff -r 80a3d533a145 -r 25b50fd3aa8b lib/libcurses/curses_line.3
--- a/lib/libcurses/curses_line.3       Fri Feb 19 17:57:06 2010 +0000
+++ b/lib/libcurses/curses_line.3       Fri Feb 19 19:09:15 2010 +0000
@@ -1,4 +1,4 @@
-.\"    $NetBSD: curses_line.3,v 1.4 2003/04/16 13:35:01 wiz Exp $
+.\"    $NetBSD: curses_line.3,v 1.5 2010/02/19 19:09:15 drochner Exp $
 .\"
 .\" Copyright (c) 2002
 .\"    Brett Lymn (blymn%NetBSD.org@localhost, brett_lymn%yahoo.com.au@localhost)
@@ -154,6 +154,18 @@
 .Nx
 Curses library complies with the X/Open Curses specification, part of
 the Single Unix Specification.
+.Pp
+The use of
+.Dv ACS_HLINE
+and
+.Dv ACS_VLINE
+as default drawing character in
+.Fn hline
+and
+.Fn vline
+is a
+.Nx
+extension which should not be relied on in portable code.
 .Sh HISTORY
 The Curses package appeared in
 .Bx 4.0 .