Mercurial > hg > octave-lyh
annotate liboctave/oct-alloc.cc @ 11188:4cb1522e4d0f
Use function handle as input to cellfun,
rather than quoted function name or anonymous function wrapper.
| author | Rik <octave@nomad.inbox5.com> |
|---|---|
| date | Wed, 03 Nov 2010 17:20:56 -0700 |
| parents | 07ebe522dac2 |
| children | fd0a3ac60b0e |
| rev | line source |
|---|---|
| 2475 | 1 /* |
| 2 | |
| 7017 | 3 Copyright (C) 1996, 1997, 1998, 2000, 2002, 2004, 2005, 2006, 2007 |
| 4 John W. Eaton | |
| 2475 | 5 |
| 6 This file is part of Octave. | |
| 7 | |
| 8 Octave is free software; you can redistribute it and/or modify it | |
| 9 under the terms of the GNU General Public License as published by the | |
| 7016 | 10 Free Software Foundation; either version 3 of the License, or (at your |
| 11 option) any later version. | |
| 2475 | 12 |
| 13 Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 16 for more details. | |
| 17 | |
| 18 You should have received a copy of the GNU General Public License | |
| 7016 | 19 along with Octave; see the file COPYING. If not, see |
| 20 <http://www.gnu.org/licenses/>. | |
| 2475 | 21 |
| 22 */ | |
| 23 | |
| 24 #ifdef HAVE_CONFIG_H | |
| 25 #include <config.h> | |
| 26 #endif | |
| 27 | |
| 28 #include <new> | |
| 29 | |
| 30 #include "oct-alloc.h" | |
| 31 | |
| 32 void * | |
| 33 octave_allocator::alloc (size_t size) | |
| 34 { | |
| 35 if (size != item_size) | |
| 36 return ::new char [size]; | |
| 37 | |
| 38 if (! head) | |
| 39 { | |
| 40 if (! grow ()) | |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
41 return 0; |
| 2475 | 42 } |
| 43 | |
| 44 link *tmp = head; | |
| 45 head = head->next; | |
| 46 return tmp; | |
| 47 } | |
| 48 | |
| 5775 | 49 // FIXME -- if we free the last item on the list, shouldn't we |
| 5013 | 50 // also free the underlying character array used for storage? |
| 51 | |
| 2475 | 52 void |
| 53 octave_allocator::free (void *p, size_t size) | |
| 54 { | |
| 55 if (size != item_size) | |
| 2800 | 56 ::delete [] (static_cast<char *> (p)); |
| 2475 | 57 else |
| 58 { | |
| 2800 | 59 link *tmp = static_cast<link *> (p); |
| 2475 | 60 tmp->next = head; |
| 61 head = tmp; | |
| 62 } | |
| 63 } | |
| 64 | |
| 65 // Return TRUE for successful allocation, FALSE otherwise. | |
| 66 | |
| 67 bool | |
| 68 octave_allocator::grow (void) | |
| 69 { | |
| 70 bool retval = true; | |
| 71 | |
| 72 char *start = new char [grow_size * item_size]; | |
| 73 | |
| 74 if (start) | |
| 75 { | |
| 76 char *last = &start[(grow_size - 1) * item_size]; | |
| 77 | |
| 78 char *p = start; | |
| 79 while (p < last) | |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
80 { |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
81 char *next = p + item_size; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
82 (reinterpret_cast<link *> (p)) -> next |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
83 = reinterpret_cast<link *> (next); |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
84 p = next; |
|
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
85 } |
| 2475 | 86 |
| 5760 | 87 (reinterpret_cast<link *> (last)) -> next = 0; |
| 2475 | 88 |
| 5760 | 89 head = reinterpret_cast<link *> (start); |
| 2475 | 90 } |
| 91 else | |
| 92 { | |
| 93 typedef void (*error_handler_function) (void); | |
| 94 | |
| 3503 | 95 error_handler_function f = std::set_new_handler (0); |
| 96 std::set_new_handler (f); | |
| 2475 | 97 |
| 98 if (f) | |
|
10314
07ebe522dac2
untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents:
10158
diff
changeset
|
99 f (); |
| 2475 | 100 |
| 101 retval = false; | |
| 102 } | |
| 103 | |
| 104 return retval; | |
| 105 } |