.\" authorization. *
.\"***************************************************************************
.\"
-.\" $Id: curs_insstr.3x,v 1.48 2024/03/16 15:49:07 tom Exp $
-.TH curs_insstr 3X 2024-03-16 "ncurses @NCURSES_MAJOR@.@NCURSES_MINOR@" "Library calls"
+.\" $Id: curs_insstr.3x,v 1.51 2024/04/20 21:20:07 tom Exp $
+.TH curs_insstr 3X 2024-04-20 "ncurses @NCURSES_MAJOR@.@NCURSES_MINOR@" "Library calls"
.ie \n(.g \{\
.ds `` \(lq
.ds '' \(rq
.bP
the \fBwinsch\fP(3X) function returns an error.
.PP
-Functions with a \*(``mv\*('' prefix first perform a cursor movement using
-\fBwmove\fP(3X), and return an error if the position is outside the window,
-or if the window pointer is null.
+Functions prefixed with \*(``mv\*('' first perform cursor movement and
+fail if the position
+.RI ( y ,
+.IR x )
+is outside the window boundaries.
.SH NOTES
All but \fBwinsnstr\fP may be macros.
.SH PORTABILITY
-These functions are described in the XSI Curses standard, Issue 4,
+These functions are described in X/Open Curses, Issue 4,
which adds \fI\%const\fP qualifiers to the arguments.
.PP
The Single Unix Specification, Version 2 states that