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annotate liboctave/util/octave-preserve-stream-state.h @ 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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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 1993-2021 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 (octave_octave_preserve_stream_state_h)
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27 #define octave_octave_preserve_stream_state_h 1
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28
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29 #include "octave-config.h"
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30
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31 #include <ios>
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32
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33 namespace octave
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34 {
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35 class
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36 preserve_stream_state
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37 {
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38 public:
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39
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40 preserve_stream_state (std::ios& s)
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41 : m_stream (s), m_oflags (s.flags ()), m_oprecision (s.precision ()),
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42 m_owidth (s.width ()), m_ofill (s.fill ())
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43 { }
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44
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45 ~preserve_stream_state (void)
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46 {
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47 m_stream.flags (m_oflags);
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48 m_stream.precision (m_oprecision);
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49 m_stream.width (m_owidth);
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50 m_stream.fill (m_ofill);
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51 }
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52
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53 private:
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54
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55 std::ios& m_stream;
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56 std::ios::fmtflags m_oflags;
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57 std::streamsize m_oprecision;
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58 int m_owidth;
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59 char m_ofill;
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60 };
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61 }
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62
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63 #endif