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function tf = ver_less_than(ver1, ver2)
%function tf = ver_less_than(ver1, ver2)
% ver1 < ver2 ? 1 : 0;
%
% INPUTS
% ver1 [string] software version number
% ver2 [string] software version number
%
% OUTPUTS
% tf [bool] true if ver1 < ver2
%
% SPECIAL REQUIREMENTS
% none
% Copyright (C) 2015-2017 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/>.
tf = true;
ver1 = strsplit(ver1, {'.', '-'});
ver2 = strsplit(ver2, {'.', '-'});
maj_ver1 = str2double(ver1{1});
maj_ver2 = str2double(ver2{1});
if maj_ver1 < maj_ver2
return
end
min_ver1 = str2double(ver1{2});
min_ver2 = str2double(ver2{2});
if (maj_ver1 == maj_ver2) && (min_ver1 < min_ver2)
return
end
if (length(ver1) == length(ver2) && length(ver1) == 3)
ismaster1 = isnan(str2double(ver1{3}));
ismaster2 = isnan(str2double(ver2{3}));
if (maj_ver1 == maj_ver2) && (min_ver1 == min_ver2) && (~ismaster1 && ismaster2)
return
end
if ~ismaster1 && ~ismaster2
rev_ver1 = str2double(ver1{3});
rev_ver2 = str2double(ver2{3});
if (maj_ver1 == maj_ver2) && (min_ver1 == min_ver2) && (rev_ver1 < rev_ver2)
return
end
end
end
tf = false;
end
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