dynare/matlab/missing/strsplit/private/ischarnum.m

35 lines
922 B
Matlab

function l = ischarnum(x)
% Returns true if and only if char x represents a real number.
% Copyright © 2018 DynareTeam
%
% 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/>.
l = false;
s = warning;
warning off;
number = str2double(x);
warning(s);
if ~isempty(number)
if isreal(number)
l = true;
end
end