Mercurial > code
annotate array.c @ 25:e09000fc013a
Switch to void * thus the user do not need to cast
author | David Demelier <markand@malikania.fr> |
---|---|
date | Thu, 15 Sep 2011 17:53:43 +0200 |
parents | 216b6e6a539c |
children | 4fd9ecbbb143 |
rev | line source |
---|---|
6
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
1 /* |
14 | 2 * array.c -- manipulate dynamic arrays |
6
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
3 * |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
4 * Copyright (c) 2011, David Demelier <markand@malikania.fr> |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
5 * |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
6 * Permission to use, copy, modify, and/or distribute this software for any |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
7 * purpose with or without fee is hereby granted, provided that the above |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
8 * copyright notice and this permission notice appear in all copies. |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
9 * |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
9 | 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
6
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
17 */ |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
18 |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
19 #include <stdio.h> |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
20 #include <stdlib.h> |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
21 #include <string.h> |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
22 |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
23 #include "array.h" |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
24 |
8
127254037b30
Switch to a void * array instead of void **
David Demelier <markand@malikania.fr>
parents:
7
diff
changeset
|
25 #define SIZE(x) (arr->unit * (x)) |
6
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
26 |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
27 static int array_grow(struct array *); |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
28 |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
29 struct array * |
8
127254037b30
Switch to a void * array instead of void **
David Demelier <markand@malikania.fr>
parents:
7
diff
changeset
|
30 array_new(const void *data, size_t unit, size_t bsize, int flags) |
6
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
31 { |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
32 struct array *arr; |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
33 |
8
127254037b30
Switch to a void * array instead of void **
David Demelier <markand@malikania.fr>
parents:
7
diff
changeset
|
34 if (unit == 0 || !(arr = malloc(sizeof (struct array)))) |
6
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
35 return NULL; |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
36 |
22
ecdf21f1d0c6
Added a new function array_swap() that swap elements by index
David Demelier <markand@malikania.fr>
parents:
17
diff
changeset
|
37 arr->tmp = NULL; |
ecdf21f1d0c6
Added a new function array_swap() that swap elements by index
David Demelier <markand@malikania.fr>
parents:
17
diff
changeset
|
38 arr->length = 0; |
ecdf21f1d0c6
Added a new function array_swap() that swap elements by index
David Demelier <markand@malikania.fr>
parents:
17
diff
changeset
|
39 arr->flags = flags; |
6
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
40 arr->bsize = (bsize == 0) ? ARRAY_DEFAULT_BSIZE : bsize; |
8
127254037b30
Switch to a void * array instead of void **
David Demelier <markand@malikania.fr>
parents:
7
diff
changeset
|
41 arr->unit = unit; |
22
ecdf21f1d0c6
Added a new function array_swap() that swap elements by index
David Demelier <markand@malikania.fr>
parents:
17
diff
changeset
|
42 arr->size = SIZE(arr->bsize); |
6
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
43 |
8
127254037b30
Switch to a void * array instead of void **
David Demelier <markand@malikania.fr>
parents:
7
diff
changeset
|
44 if (!(arr->data = malloc(arr->size))) { |
6
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
45 free(arr); |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
46 return NULL; |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
47 } |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
48 |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
49 if (data) |
12
cbfe95c9f7b7
Fix compiler warning (thanks gcc 4.2.2) and security
David Demelier <markand@malikania.fr>
parents:
10
diff
changeset
|
50 memcpy(arr->data, data, arr->unit); |
6
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
51 |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
52 return arr; |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
53 } |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
54 |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
55 /* |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
56 * Add to the head of array. NOTE: this may be very slow when adding a lot |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
57 * of object (about 100000). If you need to add a lot of data please consider |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
58 * using linked list instead or use array_append and then use reverse foreach |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
59 * functions. |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
60 */ |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
61 |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
62 int |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
63 array_push(struct array *arr, const void *data) |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
64 { |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
65 if (array_grow(arr) < 0) |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
66 return -1; |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
67 |
25
e09000fc013a
Switch to void * thus the user do not need to cast
David Demelier <markand@malikania.fr>
parents:
23
diff
changeset
|
68 memmove((char *) arr->data + arr->unit, arr->data, SIZE(arr->length++)); |
e09000fc013a
Switch to void * thus the user do not need to cast
David Demelier <markand@malikania.fr>
parents:
23
diff
changeset
|
69 memcpy((char *) arr->data, data, arr->unit); |
6
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
70 |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
71 return 0; |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
72 } |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
73 |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
74 /* |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
75 * Insert the data to the specified index. The function returns -1 on |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
76 * allocation failure if the array need to grow or when the index is out |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
77 * of bounds otherwise 0 is returned. |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
78 */ |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
79 |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
80 int |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
81 array_insert(struct array *arr, const void *data, int index) |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
82 { |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
83 if (index > arr->length - 1 || index < 0 || array_grow(arr) < 0) |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
84 return -1; |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
85 |
25
e09000fc013a
Switch to void * thus the user do not need to cast
David Demelier <markand@malikania.fr>
parents:
23
diff
changeset
|
86 memmove((char *) arr->data + SIZE(index + 1), (char *) arr->data + SIZE(index), |
6
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
87 SIZE(arr->length++ - index)); |
25
e09000fc013a
Switch to void * thus the user do not need to cast
David Demelier <markand@malikania.fr>
parents:
23
diff
changeset
|
88 memcpy((char *) arr->data + SIZE(index), data, arr->unit); |
6
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
89 |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
90 return 0; |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
91 } |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
92 |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
93 /* |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
94 * Append the data to the end of array. |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
95 */ |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
96 |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
97 int |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
98 array_append(struct array *arr, const void *data) |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
99 { |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
100 if (array_grow(arr) < 0) |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
101 return -1; |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
102 |
25
e09000fc013a
Switch to void * thus the user do not need to cast
David Demelier <markand@malikania.fr>
parents:
23
diff
changeset
|
103 memcpy((char *) arr->data + SIZE(arr->length++), data, arr->unit); |
6
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
104 |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
105 return 0; |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
106 } |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
107 |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
108 /* |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
109 * Remove the array's head and return the object or NULL if |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
110 * the array is empty. |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
111 */ |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
112 |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
113 void * |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
114 array_pop(struct array *arr) |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
115 { |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
116 void *data; |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
117 |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
118 if (arr->length == 0) |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
119 return NULL; |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
120 |
12
cbfe95c9f7b7
Fix compiler warning (thanks gcc 4.2.2) and security
David Demelier <markand@malikania.fr>
parents:
10
diff
changeset
|
121 data = arr->data; |
25
e09000fc013a
Switch to void * thus the user do not need to cast
David Demelier <markand@malikania.fr>
parents:
23
diff
changeset
|
122 memmove((char *) arr->data, (char *) arr->data + SIZE(1), |
e09000fc013a
Switch to void * thus the user do not need to cast
David Demelier <markand@malikania.fr>
parents:
23
diff
changeset
|
123 SIZE(arr->length)); |
e09000fc013a
Switch to void * thus the user do not need to cast
David Demelier <markand@malikania.fr>
parents:
23
diff
changeset
|
124 memset((char *) arr->data + SIZE(--arr->length), 0, arr->unit); |
6
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
125 |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
126 return data; |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
127 } |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
128 |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
129 /* |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
130 * Remove the array's queue and return the object or NULL |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
131 * if the array is empty. |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
132 */ |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
133 |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
134 void * |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
135 array_unqueue(struct array *arr) |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
136 { |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
137 void *data; |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
138 |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
139 if (arr->length == 0) |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
140 return NULL; |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
141 |
25
e09000fc013a
Switch to void * thus the user do not need to cast
David Demelier <markand@malikania.fr>
parents:
23
diff
changeset
|
142 data = (char *) arr->data + SIZE(--arr->length); |
e09000fc013a
Switch to void * thus the user do not need to cast
David Demelier <markand@malikania.fr>
parents:
23
diff
changeset
|
143 memset((char *) arr->data + SIZE(arr->length), 0, arr->unit); |
6
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
144 |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
145 return data; |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
146 } |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
147 |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
148 /* |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
149 * Remove the entry at the specified index and return it. If the index is out of |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
150 * bounds or the list is empty the functions returns NULL. |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
151 */ |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
152 |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
153 void * |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
154 array_remove(struct array *arr, int index) |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
155 { |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
156 void *data; |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
157 |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
158 if (arr->length == 0 || index < 0 || index > arr->length - 1) |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
159 return NULL; |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
160 |
25
e09000fc013a
Switch to void * thus the user do not need to cast
David Demelier <markand@malikania.fr>
parents:
23
diff
changeset
|
161 data = (char *) arr->data + SIZE(index); |
e09000fc013a
Switch to void * thus the user do not need to cast
David Demelier <markand@malikania.fr>
parents:
23
diff
changeset
|
162 memmove((char *) arr->data + SIZE(index), (char *) arr->data + SIZE(index + 1), |
6
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
163 SIZE(arr->length - index)); |
25
e09000fc013a
Switch to void * thus the user do not need to cast
David Demelier <markand@malikania.fr>
parents:
23
diff
changeset
|
164 memset((char *) arr->data + SIZE(--arr->length), 0, arr->unit); |
6
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
165 |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
166 return data; |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
167 } |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
168 |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
169 /* |
22
ecdf21f1d0c6
Added a new function array_swap() that swap elements by index
David Demelier <markand@malikania.fr>
parents:
17
diff
changeset
|
170 * Swap the two elements referenced by index `i1' and `i2'. This function needs |
ecdf21f1d0c6
Added a new function array_swap() that swap elements by index
David Demelier <markand@malikania.fr>
parents:
17
diff
changeset
|
171 * to allocate data to swap elements thus if the functions fails it returns -1 |
ecdf21f1d0c6
Added a new function array_swap() that swap elements by index
David Demelier <markand@malikania.fr>
parents:
17
diff
changeset
|
172 * otherwise 0 is returned. |
ecdf21f1d0c6
Added a new function array_swap() that swap elements by index
David Demelier <markand@malikania.fr>
parents:
17
diff
changeset
|
173 */ |
ecdf21f1d0c6
Added a new function array_swap() that swap elements by index
David Demelier <markand@malikania.fr>
parents:
17
diff
changeset
|
174 |
ecdf21f1d0c6
Added a new function array_swap() that swap elements by index
David Demelier <markand@malikania.fr>
parents:
17
diff
changeset
|
175 int |
ecdf21f1d0c6
Added a new function array_swap() that swap elements by index
David Demelier <markand@malikania.fr>
parents:
17
diff
changeset
|
176 array_swap(struct array *arr, int i1, int i2) |
ecdf21f1d0c6
Added a new function array_swap() that swap elements by index
David Demelier <markand@malikania.fr>
parents:
17
diff
changeset
|
177 { |
ecdf21f1d0c6
Added a new function array_swap() that swap elements by index
David Demelier <markand@malikania.fr>
parents:
17
diff
changeset
|
178 /* Out of bounds */ |
ecdf21f1d0c6
Added a new function array_swap() that swap elements by index
David Demelier <markand@malikania.fr>
parents:
17
diff
changeset
|
179 if (i1 > arr->length - 1|| i1 < 0 || i2 > arr->length - 1|| i2 < 0) |
ecdf21f1d0c6
Added a new function array_swap() that swap elements by index
David Demelier <markand@malikania.fr>
parents:
17
diff
changeset
|
180 return -1; |
ecdf21f1d0c6
Added a new function array_swap() that swap elements by index
David Demelier <markand@malikania.fr>
parents:
17
diff
changeset
|
181 |
ecdf21f1d0c6
Added a new function array_swap() that swap elements by index
David Demelier <markand@malikania.fr>
parents:
17
diff
changeset
|
182 /* |
ecdf21f1d0c6
Added a new function array_swap() that swap elements by index
David Demelier <markand@malikania.fr>
parents:
17
diff
changeset
|
183 * Only allocate at this time, the user may do not want to use this |
ecdf21f1d0c6
Added a new function array_swap() that swap elements by index
David Demelier <markand@malikania.fr>
parents:
17
diff
changeset
|
184 * function. |
ecdf21f1d0c6
Added a new function array_swap() that swap elements by index
David Demelier <markand@malikania.fr>
parents:
17
diff
changeset
|
185 */ |
ecdf21f1d0c6
Added a new function array_swap() that swap elements by index
David Demelier <markand@malikania.fr>
parents:
17
diff
changeset
|
186 |
ecdf21f1d0c6
Added a new function array_swap() that swap elements by index
David Demelier <markand@malikania.fr>
parents:
17
diff
changeset
|
187 if (!arr->tmp && !(arr->tmp = malloc(arr->unit))) |
ecdf21f1d0c6
Added a new function array_swap() that swap elements by index
David Demelier <markand@malikania.fr>
parents:
17
diff
changeset
|
188 return -1; |
ecdf21f1d0c6
Added a new function array_swap() that swap elements by index
David Demelier <markand@malikania.fr>
parents:
17
diff
changeset
|
189 |
25
e09000fc013a
Switch to void * thus the user do not need to cast
David Demelier <markand@malikania.fr>
parents:
23
diff
changeset
|
190 memcpy((char *) arr->tmp, (char *) arr->data + SIZE(i1), arr->unit); |
e09000fc013a
Switch to void * thus the user do not need to cast
David Demelier <markand@malikania.fr>
parents:
23
diff
changeset
|
191 memcpy((char *) arr->data + SIZE(i1), (char *) arr->data + SIZE(i2), arr->unit); |
e09000fc013a
Switch to void * thus the user do not need to cast
David Demelier <markand@malikania.fr>
parents:
23
diff
changeset
|
192 memcpy((char *) arr->data + SIZE(i2), (char *) arr->tmp, arr->unit); |
22
ecdf21f1d0c6
Added a new function array_swap() that swap elements by index
David Demelier <markand@malikania.fr>
parents:
17
diff
changeset
|
193 |
ecdf21f1d0c6
Added a new function array_swap() that swap elements by index
David Demelier <markand@malikania.fr>
parents:
17
diff
changeset
|
194 return 0; |
ecdf21f1d0c6
Added a new function array_swap() that swap elements by index
David Demelier <markand@malikania.fr>
parents:
17
diff
changeset
|
195 } |
ecdf21f1d0c6
Added a new function array_swap() that swap elements by index
David Demelier <markand@malikania.fr>
parents:
17
diff
changeset
|
196 |
ecdf21f1d0c6
Added a new function array_swap() that swap elements by index
David Demelier <markand@malikania.fr>
parents:
17
diff
changeset
|
197 /* |
6
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
198 * Apply the function `fn' on each object and give the optional `udata' |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
199 * argument to the function too. |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
200 */ |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
201 |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
202 void |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
203 array_map(struct array *arr, void (*fn)(void *, void *), void *udata) |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
204 { |
8
127254037b30
Switch to a void * array instead of void **
David Demelier <markand@malikania.fr>
parents:
7
diff
changeset
|
205 int i; |
6
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
206 |
8
127254037b30
Switch to a void * array instead of void **
David Demelier <markand@malikania.fr>
parents:
7
diff
changeset
|
207 for (i = 0; i < arr->length; ++i) |
25
e09000fc013a
Switch to void * thus the user do not need to cast
David Demelier <markand@malikania.fr>
parents:
23
diff
changeset
|
208 fn((char *) arr->data + SIZE(i), udata); |
6
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
209 } |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
210 |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
211 /* |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
212 * Compare each object with the user supplied function. If the `fn' function |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
213 * returns 1 then the data is returned. Optional idx argument can be set to |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
214 * indicate the data position. If the data was not found the function returns |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
215 * NULL. |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
216 */ |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
217 |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
218 void * |
25
e09000fc013a
Switch to void * thus the user do not need to cast
David Demelier <markand@malikania.fr>
parents:
23
diff
changeset
|
219 array_find(struct array *arr, int (*fn)(void *, void *), int *idx, void *udata) |
6
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
220 { |
8
127254037b30
Switch to a void * array instead of void **
David Demelier <markand@malikania.fr>
parents:
7
diff
changeset
|
221 int st, i; |
6
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
222 void *data; |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
223 |
8
127254037b30
Switch to a void * array instead of void **
David Demelier <markand@malikania.fr>
parents:
7
diff
changeset
|
224 for (i = st = 0; i < arr->length && !st; ++i) |
25
e09000fc013a
Switch to void * thus the user do not need to cast
David Demelier <markand@malikania.fr>
parents:
23
diff
changeset
|
225 st = fn((char *) arr->data + SIZE(i), udata); |
6
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
226 |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
227 if (st) { |
25
e09000fc013a
Switch to void * thus the user do not need to cast
David Demelier <markand@malikania.fr>
parents:
23
diff
changeset
|
228 data = (char *) arr->data + SIZE(--i); |
6
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
229 if (idx) |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
230 *idx = i; |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
231 } else |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
232 data = NULL; |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
233 |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
234 return data; |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
235 } |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
236 |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
237 /* |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
238 * Reset the array, if the trash argument is set it will free the object |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
239 * too, otherwise the array is just truncated to 0 length. |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
240 */ |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
241 |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
242 void |
8
127254037b30
Switch to a void * array instead of void **
David Demelier <markand@malikania.fr>
parents:
7
diff
changeset
|
243 array_clear(struct array *arr) |
6
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
244 { |
8
127254037b30
Switch to a void * array instead of void **
David Demelier <markand@malikania.fr>
parents:
7
diff
changeset
|
245 memset(arr->data, 0, arr->size); |
6
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
246 arr->length = 0; |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
247 } |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
248 |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
249 /* |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
250 * Same as array_clear except it also free the array object. |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
251 */ |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
252 |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
253 void |
8
127254037b30
Switch to a void * array instead of void **
David Demelier <markand@malikania.fr>
parents:
7
diff
changeset
|
254 array_free(struct array *arr) |
6
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
255 { |
8
127254037b30
Switch to a void * array instead of void **
David Demelier <markand@malikania.fr>
parents:
7
diff
changeset
|
256 array_clear(arr); |
6
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
257 |
22
ecdf21f1d0c6
Added a new function array_swap() that swap elements by index
David Demelier <markand@malikania.fr>
parents:
17
diff
changeset
|
258 if (arr->data) |
ecdf21f1d0c6
Added a new function array_swap() that swap elements by index
David Demelier <markand@malikania.fr>
parents:
17
diff
changeset
|
259 free(arr->data); |
ecdf21f1d0c6
Added a new function array_swap() that swap elements by index
David Demelier <markand@malikania.fr>
parents:
17
diff
changeset
|
260 if (arr->tmp) |
ecdf21f1d0c6
Added a new function array_swap() that swap elements by index
David Demelier <markand@malikania.fr>
parents:
17
diff
changeset
|
261 free(arr->tmp); |
ecdf21f1d0c6
Added a new function array_swap() that swap elements by index
David Demelier <markand@malikania.fr>
parents:
17
diff
changeset
|
262 |
6
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
263 free(arr); |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
264 } |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
265 |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
266 /* |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
267 * Increate the array storage when it is full. If the buffer is fixed size |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
268 * it returns -1 on full buffer otherwise 0 is returned if allocation |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
269 * succeeded. |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
270 */ |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
271 |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
272 static int |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
273 array_grow(struct array *arr) |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
274 { |
17
e9a7b671d707
Use char * instead of void, MSVC does not like void * arithmetic
David Demelier <markand@malikania.fr>
parents:
14
diff
changeset
|
275 if ((arr->size / arr->unit) > (size_t) arr->length) |
6
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
276 return 0; |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
277 |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
278 if (arr->flags & ARRAY_AUTO) { |
8
127254037b30
Switch to a void * array instead of void **
David Demelier <markand@malikania.fr>
parents:
7
diff
changeset
|
279 if (!(arr->data = realloc(arr->data, arr->size + |
127254037b30
Switch to a void * array instead of void **
David Demelier <markand@malikania.fr>
parents:
7
diff
changeset
|
280 SIZE(arr->bsize)))) |
6
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
281 return -1; |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
282 |
10 | 283 arr->size += SIZE(arr->bsize); |
6
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
284 } else |
17
e9a7b671d707
Use char * instead of void, MSVC does not like void * arithmetic
David Demelier <markand@malikania.fr>
parents:
14
diff
changeset
|
285 return ((arr->size / arr->unit) <= (size_t) arr->length) ? -1 : 0; |
6
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
286 |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
287 return 0; |
25cc379de564
Added array.c and array.h:
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
288 } |