--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main/struct/setfield.m	Wed Oct 10 19:54:49 2001 +0000
@@ -0,0 +1,47 @@
+## Copyright (C) 2000  Etienne Grossman
+##
+## This program is free software; you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation; either version 2 of the License, or
+## (at your option) any later version.
+##
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+## GNU General Public License for more details.
+##
+## You should have received a copy of the GNU General Public License
+## along with this program; if not, write to the Free Software
+## Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+##        s = setfield(s,'key1',value1,...)
+## 
+## Sets s.key1 = value1,  s.key2 = value2, ... and returns s.
+## 
+## For m****b compatibility and flexibility.
+## 
+## See also cmpstruct, fields, rmfield, isstruct, getfield, isfield,
+## struct. 
+## 
+
+## Author:        Etienne Grossmann  <etienne@isr.ist.utl.pt>
+## Last modified: January 2000
+## November 2000: Paul Kienzle <pkienzle@kienzle.powernet.co.uk>
+##     return error rather than trapping to keyboard
+
+function s = setfield(s,...)
+va_start() ; 
+nargin-- ;
+while nargin-- ,
+  tmp = va_arg() ;
+  if ! isstr(tmp) ,
+    error('setfield: called with non-string key') ; 
+  else
+    if ! nargin-- ,
+      error('setfield: called with odd number of arguments\n') ; 
+    else
+      value = va_arg() ;
+      eval( ['s.',tmp,'=value;'] ) ;
+    end
+  end
+end
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