octave_ver_less_than

 function r = octave_ver_less_than(verstr)

 Returns 1 if current Octave version is strictly older than
 the one given in argument.

 Note that this function will fail under Matlab.

 INPUTS
    verstr: a string of the format 'x.y' or 'x.y.z'
    
 OUTPUTS
    r: 0 or 1

 SPECIAL REQUIREMENTS
    none

0001 function r = octave_ver_less_than(verstr)
0002 % function r = octave_ver_less_than(verstr)
0003 %
0004 % Returns 1 if current Octave version is strictly older than
0005 % the one given in argument.
0006 %
0007 % Note that this function will fail under Matlab.
0008 %
0009 % INPUTS
0010 %    verstr: a string of the format 'x.y' or 'x.y.z'
0011 %
0012 % OUTPUTS
0013 %    r: 0 or 1
0014 %
0015 % SPECIAL REQUIREMENTS
0016 %    none
0017 
0018 % Copyright (C) 2008-2009 Dynare Team
0019 %
0020 % This file is part of Dynare.
0021 %
0022 % Dynare is free software: you can redistribute it and/or modify
0023 % it under the terms of the GNU General Public License as published by
0024 % the Free Software Foundation, either version 3 of the License, or
0025 % (at your option) any later version.
0026 %
0027 % Dynare is distributed in the hope that it will be useful,
0028 % but WITHOUT ANY WARRANTY; without even the implied warranty of
0029 % MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
0030 % GNU General Public License for more details.
0031 %
0032 % You should have received a copy of the GNU General Public License
0033 % along with Dynare.  If not, see <http://www.gnu.org/licenses/>.
0034 
0035 cur_verstr = version();
0036 
0037 r = get_ver_numeric(cur_verstr) < get_ver_numeric(verstr);
0038 endfunction
0039 
0040 function x = get_ver_numeric(verstr)
0041 nums = sscanf(verstr, '%d.%d.%d')';
0042 if length(nums) < 3
0043     nums(3) = 0;
0044 end
0045 x = nums * [1; 0.01; 0.0001 ];
0046 endfunction