annotate liboctave/system/mach-info.h @ 21739:c4ab2e54f100

use namespace for oct_mach_info class * mach-info.h, mach-info.cc: Put oct_mach_info in octave namespace and rename to mach_info. Change all uses.
author John W. Eaton <jwe@octave.org>
date Thu, 19 May 2016 01:59:35 -0400
parents 1473547f50f5
children 949cb46e6bdb
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1 /*
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2
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4197fc428c7d maint: Update copyright notices for 2015.
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3 Copyright (C) 1996-2015 John W. Eaton
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4
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5 This file is part of Octave.
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6
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7 Octave is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 3 of the License, or (at your
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10 option) any later version.
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11
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12 Octave is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with Octave; see the file COPYING. If not, see
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19 <http://www.gnu.org/licenses/>.
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20
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21 */
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22
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23 #if ! defined (octave_mach_info_h)
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24 #define octave_mach_info_h 1
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25
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26 #include "octave-config.h"
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27
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28 #include <string>
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30 namespace octave
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31 {
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32 class
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33 OCTAVE_API
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34 mach_info
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35 {
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36 protected:
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38 mach_info (void);
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39
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40 public:
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41
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42 enum float_format
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43 {
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44 flt_fmt_unknown,
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45 flt_fmt_ieee_little_endian,
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46 flt_fmt_ieee_big_endian,
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47 };
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48
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49 static bool instance_ok (void);
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50
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51 static float_format native_float_format (void);
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52
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53 static bool words_big_endian (void);
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54
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55 static bool words_little_endian (void);
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57 static float_format string_to_float_format (const std::string&);
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59 static std::string float_format_as_string (float_format);
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61 private:
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62
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63 static mach_info *instance;
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64
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65 static void cleanup_instance (void) { delete instance; instance = 0; }
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66
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67 // The floating point format for the current machine.
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68 mutable float_format native_float_fmt;
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70 // TRUE if the byte order on this system is big endian.
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71 mutable bool big_chief;
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73 // No copying!
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74
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75 mach_info (const mach_info&);
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76
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77 mach_info& operator = (const mach_info&);
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78 };
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79 }
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80
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81 #if defined (OCTAVE_USE_DEPRECATED_FUNCTIONS)
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83 OCTAVE_DEPRECATED ("use octave::mach_info instead")
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84 typedef octave::mach_info oct_mach_info;
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85
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86 #endif
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87
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88 #endif