.\" Copyright (C) 2001 Information-technology Promotion Agency (IPA)
.\" Copyright (C) 2001-2011
.\"   National Institute of Advanced Industrial Science and Technology (AIST)
.\" This file is part of the m17n library documentation.
.\" Permission is granted to copy, distribute and/or modify this document
.\" under the terms of the GNU Free Documentation License, Version 1.2 or
.\" any later version published by the Free Software Foundation; with no
.\" Invariant Section, no Front-Cover Texts,
.\" and no Back-Cover Texts.  A copy of the license is included in the
.\" appendix entitled "GNU Free Documentation License".
.TH "mplist_put" 3m17n "Mon Sep 25 2023" "Version 1.8.4" "The m17n Library" \" -*- nroff -*-
.ad l
.nh
.SH NAME
mplist_put \- 


.SH SYNOPSIS
\fBMPlist\fP*
\fBmplist_put\fP (\fBMPlist\fP *
\fIplist\fP, MSymbol
\fIkey\fP, void *
\fIval\fP)


.SH DESCRIPTION
.PP
Set the value of a property in a property list\&. The
.ft B
mplist_put()
.ft R
function searches property list
.ft B
plist
.ft R
from the beginning for a property whose key is
.ft B
key\fP\&. If such a property is found, its value is changed to
.ft B
value\fP\&. Otherwise, a new property whose key is
.ft B
key
.ft R
and value is
.ft B
value
.ft R
is appended at the end of
.ft B
plist\fP\&. See the documentation of
.ft B
mplist_add()
.ft R
for the restriction on
.ft B
key
.ft R
and
.ft B
val\fP\&.
.PP
If
.ft B
key
.ft R
is a managing key,
.ft B
val
.ft R
must be a managed object\&. In this case, the reference count of the old value, if not
.ft C
NULL\fP,
.ft R
is decremented by one, and that of
.ft B
val
.ft R
is incremented by one\&.
.PP
.SH RETURN VALUE
.PP
.RS 4
If the operation was successful,
.ft B
mplist_put()
.ft R
returns a sublist of
.ft B
plist
.ft R
whose first element is the just modified or added one\&. Otherwise, it returns
.ft C
NULL\fP\&. 
.br
 
.RE
.PP

.SH COPYRIGHT
Copyright (C) 2001 Information\-technology Promotion Agency (IPA)
.br
Copyright (C) 2001\-2011 National Institute of Advanced Industrial Science and Technology (AIST)
.br
Permission is granted to copy, distribute and/or modify this document
under the terms of the GNU Free Documentation License 
<http://www.gnu.org/licenses/fdl.html>.