--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/m-toolbox/classes/+utils/@helper/checkMatlabVersion.m	Wed Nov 23 19:22:13 2011 +0100
@@ -0,0 +1,48 @@
+function checkMatlabVersion
+% CHECKMATLABVERSION checks the current MATLAB version.
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% 
+% DESCRIPTION: CHECKMATLABVERSION checks the current MATLAB version
+% complies with that required by LTPDA.
+% 
+%  out = utils.helper.checkMatlabVersion()
+% 
+% The MATLAB version is retrieved from the base application variable
+% 'matlab_version' which is set by ltpda_startup.
+% 
+% The required version is retrieved from 'ltpda_required_matlab_version'
+% which is also set by ltpda_startup.
+% 
+% If the current MATLAB version does not meet the requirement, then an
+% error is thrown.
+% 
+% The following call returns an info object for this method.
+%
+% >> ii = utils.helper.checkMatlabVersion('INFO')
+% 
+% HISTORY: 27-05-08 M Hewitson
+%            Creation
+% 
+% VERSION: $Id: checkMatlabVersion.m,v 1.4 2010/02/04 06:21:11 mauro Exp $
+% 
+% 
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+% required version
+rv = getappdata(0, 'ltpda_required_matlab_version');  
+% current version
+cv = strtok(getappdata(0, 'matlab_version'));
+
+rparts = getParts(rv);
+cparts = getParts(cv);
+
+if (sign(cparts - rparts) * [1; .1; .01]) < 0
+  error('### This MATLAB version is not supported by LTPDA. You require version %s or higher', rv)
+end
+
+% This is copied directly from MATLAB's verLessThan function
+function parts = getParts(V)
+    parts = sscanf(V, '%d.%d.%d')';
+    if length(parts) < 3
+       parts(3) = 0; % zero-fills to 3 elements
+    end