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## Copyright (C) 2020 John Donoghue <john.donoghue@ieee.org>
##
## This program 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.
##
## This program 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.
## -*- texinfo -*-
## @deftypefn {} {} delete (@var{dev})
## Free resources of a ultrasonic object.
##
## @subsubheading Inputs
## @var{dev} - ultrasonic object to free
##
## @seealso{ultrasonic}
## @end deftypefn
function delete(this)
try
ar = this.parent;
resource = this.resourceowner;
pins = this.pins;
if ! isempty(ar)
for i=1:numel(pins)
pin = pins{i};
configurePinResource(ar, pin.name, pin.owner, pin.mode, true);
configurePin(ar, pin.name, pin.mode);
endfor
this.parent = [];
endif
catch
# do nothing
end_try_catch
endfunction
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