.\"***************************************************************************
-.\" Copyright (c) 1998,2000,2001 Free Software Foundation, Inc. *
+.\" Copyright (c) 1998,2001,2005 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_instr.3x,v 1.10 2001/11/03 19:58:56 tom Exp $
+.\" $Id: curs_instr.3x,v 1.12 2005/05/15 17:48:23 tom Exp $
.TH curs_instr 3X ""
.SH NAME
\fBinstr\fR,
.SH RETURN VALUE
All of the functions return \fBERR\fR upon failure,
or the number of characters actually read into the string.
+.PP
+X/Open defines no error conditions.
+In this implementation,
+if the window parameter is null or the str parameter is null,
+a zero is returned.
.SH NOTES
Note that all routines except \fBwinnstr\fR may be macros.
.SH PORTABILITY
-The XSI Curses
-error conditions \fBEILSEQ\fR and \fBEILOVERFLOW\fR associated with
-extended-level conformance are not yet detected (this implementation does not
-yet support XPG4 multibyte characters).
SVr4 does not
document whether a length limit includes or excludes the trailing NUL.
.PP