Mercurial > hg > octave-lyh
annotate liboctave/sun-utils.h @ 14819:67b6b47a22f6
doc: Clarify docstrings for canonicalize_file_name, make_absolute_filename
* syscalls.cc (canonicalize_file_name): Clarify docstring.
* utils.cc (make_absolute_filename): Clarify docstring.
| author | Rik <octave@nomad.inbox5.com> |
|---|---|
| date | Fri, 29 Jun 2012 13:38:28 -0700 |
| parents | 72c96de7a403 |
| children |
| rev | line source |
|---|---|
| 3 | 1 /* |
| 2 | |
|
14138
72c96de7a403
maint: update copyright notices for 2012
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
3 Copyright (C) 1993-2012 John W. Eaton |
| 3 | 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. | |
| 3 | 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/>. | |
| 3 | 20 |
| 21 */ | |
| 22 | |
| 382 | 23 #if !defined (octave_sun_utils_h) |
| 24 #define octave_sun_utils_h 1 | |
| 25 | |
| 1359 | 26 // This is only needed to dereference pointers to doubles if mixing |
|
9179
5be2e6696772
use access_double and assign_double on sparc only
Carsten Clark <tantumquantum+gnuoctave@gmail.com>
parents:
7017
diff
changeset
|
27 // GCC and Sun SPARC f77/cc compiled code. See the GCC manual (where the |
| 1359 | 28 // function access_double() is described) and the Sun f77 manual, |
| 29 // which explains that doubles are not always aligned on 8 byte | |
| 30 // boundaries. | |
| 3 | 31 |
|
9179
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use access_double and assign_double on sparc only
Carsten Clark <tantumquantum+gnuoctave@gmail.com>
parents:
7017
diff
changeset
|
32 #if defined (__sparc) && defined (__GNUC__) |
| 3 | 33 |
| 34 inline double | |
| 35 access_double (double *unaligned_ptr) | |
| 36 { | |
| 37 union d2i { double d; int i[2]; }; | |
| 38 | |
| 39 union d2i *p = (union d2i *) unaligned_ptr; | |
| 40 union d2i u; | |
| 41 | |
| 42 u.i[0] = p->i[0]; | |
| 43 u.i[1] = p->i[1]; | |
| 44 | |
| 45 return u.d; | |
| 46 } | |
| 47 | |
| 48 inline void | |
| 49 assign_double (double *unaligned_ptr, double value) | |
| 50 { | |
| 51 union d2i { double d; int i[2]; }; | |
| 52 | |
| 53 double *ptr = &value; | |
| 54 union d2i *v = (union d2i *) ptr; | |
| 55 union d2i *p = (union d2i *) unaligned_ptr; | |
| 56 | |
| 57 p->i[0] = v->i[0]; | |
| 58 p->i[1] = v->i[1]; | |
| 59 } | |
| 60 | |
| 61 #endif | |
| 62 #endif |