60 lines
1.6 KiB
Matlab
60 lines
1.6 KiB
Matlab
function b = isempty(a)
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%@info:
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%! @deftypefn {Function File} {@var{b} =} isempty (@var{a})
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%! @anchor{@dynDate/isempty}
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%! @sp 1
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%! Overloads the isempty function for the @ref{dynDate} class.
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%! @sp 2
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%! @strong{Inputs}
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%! @sp 1
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%! @table @ @var
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%! @item a
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%! Dynare date object instantiated by @ref{dynDate}.
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%! @end table
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%! @sp 1
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%! @strong{Outputs}
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%! @sp 1
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%! @table @ @var
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%! @item b
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%! Integer scalar (equal to zero if @var{a} is not empty).
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%! @end table
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%! @sp 2
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%! @strong{This function is called by:}
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%! @sp 2
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%! @strong{This function calls:}
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%! @sp 2
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%! @end deftypefn
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%@eod:
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% Copyright (C) 2012-2013 Dynare Team
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%
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% This file is part of Dynare.
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%
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% Dynare is free software: you can redistribute it and/or modify
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% it under the terms of the GNU General Public License as published by
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% the Free Software Foundation, either version 3 of the License, or
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% (at your option) any later version.
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%
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% Dynare is distributed in the hope that it will be useful,
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% but WITHOUT ANY WARRANTY; without even the implied warranty of
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% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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% GNU General Public License for more details.
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%
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% You should have received a copy of the GNU General Public License
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% along with Dynare. If not, see <http://www.gnu.org/licenses/>.
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if ~isa(a,'dynDate')
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error(['dynDate::isempty: Input argument ' inputname(1) ' have to be a dynDate object!'])
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end
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b = all(isnan(a.time)) && isnan(a.freq);
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%@test:1
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%$ % Instantiate an empty dynDate object
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%$ d = dynDate();
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%$ % Test if this object is empty
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%$ t(1) = isempty(d);
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%$ T = all(t);
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%@eof:1
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