.\"***************************************************************************
-.\" Copyright (c) 1998-2003,2005 Free Software Foundation, Inc. *
+.\" Copyright (c) 1998-2010,2018 Free Software Foundation, Inc. *
.\" *
.\" Permission is hereby granted, free of charge, to any person obtaining a *
.\" copy of this software and associated documentation files (the *
.\" authorization. *
.\"***************************************************************************
.\"
-.\" $Id: curs_deleteln.3x,v 1.9 2005/05/15 16:53:35 tom Exp $
+.\" $Id: curs_deleteln.3x,v 1.14 2018/07/28 21:34:06 tom Exp $
.TH curs_deleteln 3X ""
.SH NAME
\fBdeleteln\fR,
\fBinsdelln\fR,
\fBwinsdelln\fR,
\fBinsertln\fR,
-\fBwinsertln\fR - delete and insert lines in a \fBcurses\fR window
+\fBwinsertln\fR \- delete and insert lines in a \fBcurses\fR window
.SH SYNOPSIS
\fB#include <curses.h>\fR
-
+.sp
\fBint deleteln(void);\fR
.br
\fBint wdeleteln(WINDOW *win);\fR
.SH DESCRIPTION
The \fBdeleteln\fR and \fBwdeleteln\fR routines delete the line under the
cursor in the window; all lines below the current line are moved up one line.
-The bottom line of the window is cleared. The cursor position does not change.
-
+The bottom line of the window is cleared.
+The cursor position does not change.
+.PP
The \fBinsdelln\fR and \fBwinsdelln\fR routines, for positive \fIn\fR, insert
-\fIn\fR lines into the specified window above the current line. The \fIn\fR
-bottom lines are lost. For negative \fIn\fR, delete \fIn\fR lines (starting
-with the one under the cursor), and move the remaining lines up. The bottom
-\fIn\fR lines are cleared. The current cursor position remains the same.
-
+\fIn\fR lines into the specified window above the current line.
+The \fIn\fR
+bottom lines are lost.
+For negative \fIn\fR, delete \fIn\fR lines (starting
+with the one under the cursor), and move the remaining lines up.
+The bottom
+\fIn\fR lines are cleared.
+The current cursor position remains the same.
+.PP
The \fBinsertln\fR and \fBwinsertln\fR routines insert a blank line above the
current line and the bottom line is lost.
.SH RETURN VALUE
In this implementation,
if the window parameter is null, an error is returned.
.SH PORTABILITY
-These functions are described in the XSI Curses standard, Issue 4. The
+These functions are described in the XSI Curses standard, Issue 4.
+The
standard specifies that they return \fBERR\fR on failure, but specifies no
error conditions.
.SH NOTES
Note that all but \fBwinsdelln\fR may be macros.
-
+.PP
These routines do not require a hardware line delete or insert feature in the
-terminal. In fact, they won't use hardware line delete/insert unless
+terminal.
+In fact, they will not use hardware line delete/insert unless
\fBidlok(..., TRUE)\fR has been set on the current window.
.SH SEE ALSO
\fBcurses\fR(3X)
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