Mercurial > hg > octave-nkf
annotate liboctave/mach-info.h @ 14026:3781981be535 ss-3-5-90
snapshot 3.5.90
* configure.ac (AC_INIT): Version is now 3.5.90.
(OCTAVE_API_VERSION_NUMBER): Now 46.
(OCTAVE_RELEASE_DATE): Now 2011-12-11.
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Sun, 11 Dec 2011 23:18:31 -0500 |
| parents | 7dd7cccf0757 |
| children | 72c96de7a403 |
| rev | line source |
|---|---|
| 1960 | 1 /* |
| 2 | |
| 11523 | 3 Copyright (C) 1996-2011 John W. Eaton |
| 1960 | 4 |
| 5 This file is part of Octave. | |
| 6 | |
| 7 Octave is free software; you can redistribute it and/or modify it | |
| 8 under the terms of the GNU General Public License as published by the | |
| 7016 | 9 Free Software Foundation; either version 3 of the License, or (at your |
| 10 option) any later version. | |
| 1960 | 11 |
| 12 Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 15 for more details. | |
| 16 | |
| 17 You should have received a copy of the GNU General Public License | |
| 7016 | 18 along with Octave; see the file COPYING. If not, see |
| 19 <http://www.gnu.org/licenses/>. | |
| 1960 | 20 |
| 21 */ | |
| 22 | |
| 2317 | 23 #if !defined (octave_mach_info_h) |
| 24 #define octave_mach_info_h 1 | |
| 25 | |
| 26 #include <string> | |
| 27 | |
| 28 class | |
| 6108 | 29 OCTAVE_API |
| 2317 | 30 oct_mach_info |
| 31 { | |
| 2926 | 32 protected: |
| 33 | |
| 34 oct_mach_info (void); | |
| 35 | |
| 2317 | 36 public: |
| 37 | |
| 38 enum float_format | |
| 39 { | |
| 4574 | 40 flt_fmt_unknown, |
| 41 flt_fmt_ieee_little_endian, | |
| 42 flt_fmt_ieee_big_endian, | |
| 43 flt_fmt_vax_d, | |
| 44 flt_fmt_vax_g, | |
| 45 flt_fmt_cray | |
| 2317 | 46 }; |
| 47 | |
| 2926 | 48 static bool instance_ok (void); |
| 2317 | 49 |
| 50 static float_format native_float_format (void); | |
| 51 | |
| 52 static bool words_big_endian (void); | |
| 1960 | 53 |
| 2317 | 54 static bool words_little_endian (void); |
| 55 | |
| 3504 | 56 static float_format string_to_float_format (const std::string&); |
| 2317 | 57 |
| 3504 | 58 static std::string float_format_as_string (float_format); |
| 2317 | 59 |
| 60 private: | |
| 61 | |
| 62 static oct_mach_info *instance; | |
| 63 | |
|
13983
7dd7cccf0757
clean up memory allocated for singletons before exit
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
64 static void cleanup_instance (void) { delete instance; instance = 0; } |
|
7dd7cccf0757
clean up memory allocated for singletons before exit
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
65 |
| 2317 | 66 // The floating point format for the current machine. |
| 2926 | 67 mutable float_format native_float_fmt; |
| 1960 | 68 |
| 2317 | 69 // TRUE if the byte order on this system is big endian. |
| 2926 | 70 mutable bool big_chief; |
| 2317 | 71 |
| 72 // No copying! | |
| 73 | |
| 74 oct_mach_info (const oct_mach_info&); | |
| 75 | |
| 76 oct_mach_info& operator = (const oct_mach_info&); | |
| 77 }; | |
| 1960 | 78 |
| 79 #endif |