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annotate scripts/general/saveobj.m @ 16385:a1690c3e93eb

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move hook_function constructor to .cc file * hook-fcn.cc: New file. Move hook_function::hook_function definition here from hook-fcn.h. * libinterp/interpfcn/module.mk (INTERPFCN_SRC): Include hook-fcn.cc in the list.
author John W. Eaton <jwe@octave.org>
date Thu, 28 Mar 2013 02:52:18 -0400
parents 6e04750eaffb
children 1c89599167a6
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1 ## Copyright (C) 2008-2012 David Bateman
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2 ##
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3 ## This file is part of Octave.
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4 ##
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5 ## Octave is free software; you can redistribute it and/or modify it
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6 ## under the terms of the GNU General Public License as published by
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7 ## the Free Software Foundation; either version 3 of the License, or (at
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8 ## your option) any later version.
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9 ##
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10 ## Octave is distributed in the hope that it will be useful, but
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11 ## WITHOUT ANY WARRANTY; without even the implied warranty of
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12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 ## General Public License for more details.
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14 ##
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15 ## You should have received a copy of the GNU General Public License
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16 ## along with Octave; see the file COPYING. If not, see
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17 ## <http://www.gnu.org/licenses/>.
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18
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19 ## -*- texinfo -*-
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20 ## @deftypefn {Function File} {@var{b} =} saveobj (@var{a})
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21 ## Method of a class to manipulate an object prior to saving it to a file.
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22 ## The function @code{saveobj} is called when the object @var{a} is saved
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23 ## using the @code{save} function. An example of the use of @code{saveobj}
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24 ## might be to remove fields of the object that don't make sense to be saved
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25 ## or it might be used to ensure that certain fields of the object are
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26 ## initialized before the object is saved. For example:
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27 ##
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28 ## @example
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29 ## @group
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30 ## function b = saveobj (a)
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31 ## b = a;
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32 ## if (isempty (b.field))
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33 ## b.field = initfield (b);
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34 ## endif
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35 ## endfunction
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36 ## @end group
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37 ## @end example
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38 ##
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39 ## @seealso{loadobj, class}
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40 ## @end deftypefn
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41
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42 function b = saveobj (a)
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43 error ('saveobj: not defined for class "%s"', class (a));
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44 endfunction