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annotate liboctave/util/singleton-cleanup.cc @ 29358:0a5b15007766 stable

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update Octave Project Developers copyright for the new year In files that have the "Octave Project Developers" copyright notice, update for 2021.
author John W. Eaton <jwe@octave.org>
date Wed, 10 Feb 2021 09:52:15 -0500
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children 796f54d4ddbf
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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 2012-2021 The Octave Project Developers
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4 //
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5 // See the file COPYRIGHT.md in the top-level directory of this
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6 // distribution or <https://octave.org/copyright/>.
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7 //
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8 // This file is part of Octave.
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9 //
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10 // Octave is free software: you can redistribute it and/or modify it
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11 // under the terms of the GNU General Public License as published by
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12 // the Free Software Foundation, either version 3 of the License, or
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13 // (at your option) any later version.
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14 //
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15 // Octave is distributed in the hope that it will be useful, but
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16 // WITHOUT ANY WARRANTY; without even the implied warranty of
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17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 // GNU General Public License for more details.
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19 //
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20 // You should have received a copy of the GNU General Public License
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21 // along with Octave; see the file COPYING. If not, see
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22 // <https://www.gnu.org/licenses/>.
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23 //
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24 ////////////////////////////////////////////////////////////////////////
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25
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26 #if defined (HAVE_CONFIG_H)
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27 # include "config.h"
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28 #endif
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29
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30 #include "lo-error.h"
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31 #include "singleton-cleanup.h"
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32
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33 singleton_cleanup_list *singleton_cleanup_list::s_instance = nullptr;
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34
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35 singleton_cleanup_list::~singleton_cleanup_list (void)
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36 {
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37 for (fptr fcn : m_fcn_list)
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38 {
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39 fcn ();
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40 }
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41 }
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42
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43 bool
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44 singleton_cleanup_list::instance_ok (void)
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45 {
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46 bool retval = true;
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47
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48 if (! s_instance)
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49 s_instance = new singleton_cleanup_list ();
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50
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51 return retval;
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52 }