function [state_u,state_n] = get_dynare_random_generator_state()
% Get state of Matlab/Octave random generator depending on matlab
% (octave) version. 
% In older versions, Matlab kept one generator for uniformly distributed numbers and
% one for normally distributed numbers. 
% For backward compatibility, we return two vectors, but, in recent
% versions of Matlab and in Octave, we return two identical vectors.

% Copyright (C) 2010-2013 Dynare Team
%
% This file is part of Dynare.
%
% Dynare 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 3 of the License, or
% (at your option) any later version.
%
% Dynare 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 Dynare.  If not, see <http://www.gnu.org/licenses/>.

    matlab_random_streams = ~(isoctave || matlab_ver_less_than('7.7'));

    if matlab_random_streams% Use new matlab interface.
        if matlab_ver_less_than('7.12')
            s = RandStream.getDefaultStream();
        else
            s = RandStream.getGlobalStream();
        end
        if isequal(s.Type,'legacy')
            state_u = rand('state');
            state_n = randn('state');
        else            
            state_u = s.State;
            state_n = state_u;
        end
    else% Use old matlab interface.
        state_u = rand('state');
        state_n = randn('state');
    end