1 /* Copyright (c) 2013 Scott Lembcke and Howling Moon Software
2 *
3 * Permission is hereby granted, free of charge, to any person obtaining a copy
4 * of this software and associated documentation files (the "Software"), to deal
5 * in the Software without restriction, including without limitation the rights
6 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
7 * copies of the Software, and to permit persons to whom the Software is
8 * furnished to do so, subject to the following conditions:
9 *
10 * The above copyright notice and this permission notice shall be included in
11 * all copies or substantial portions of the Software.
12 *
13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
16 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
17 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
18 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
19 * SOFTWARE.
20 */
21
22 #include <string.h>
23
24 #include "chipmunk/chipmunk_private.h"
25
26
27 cpArray *
cpArrayNew(int size)28 cpArrayNew(int size)
29 {
30 cpArray *arr = (cpArray *)cpcalloc(1, sizeof(cpArray));
31
32 arr->num = 0;
33 arr->max = (size ? size : 4);
34 arr->arr = (void **)cpcalloc(arr->max, sizeof(void*));
35
36 return arr;
37 }
38
39 void
cpArrayFree(cpArray * arr)40 cpArrayFree(cpArray *arr)
41 {
42 if(arr){
43 cpfree(arr->arr);
44 arr->arr = NULL;
45
46 cpfree(arr);
47 }
48 }
49
50 void
cpArrayPush(cpArray * arr,void * object)51 cpArrayPush(cpArray *arr, void *object)
52 {
53 if(arr->num == arr->max){
54 arr->max *= 2;
55 arr->arr = (void **)cprealloc(arr->arr, arr->max*sizeof(void*));
56 }
57
58 arr->arr[arr->num] = object;
59 arr->num++;
60 }
61
62 void *
cpArrayPop(cpArray * arr)63 cpArrayPop(cpArray *arr)
64 {
65 arr->num--;
66
67 void *value = arr->arr[arr->num];
68 arr->arr[arr->num] = NULL;
69
70 return value;
71 }
72
73 void
cpArrayDeleteObj(cpArray * arr,void * obj)74 cpArrayDeleteObj(cpArray *arr, void *obj)
75 {
76 for(int i=0; i<arr->num; i++){
77 if(arr->arr[i] == obj){
78 arr->num--;
79
80 arr->arr[i] = arr->arr[arr->num];
81 arr->arr[arr->num] = NULL;
82
83 return;
84 }
85 }
86 }
87
88 void
cpArrayFreeEach(cpArray * arr,void (freeFunc)(void *))89 cpArrayFreeEach(cpArray *arr, void (freeFunc)(void*))
90 {
91 for(int i=0; i<arr->num; i++) freeFunc(arr->arr[i]);
92 }
93
94 cpBool
cpArrayContains(cpArray * arr,void * ptr)95 cpArrayContains(cpArray *arr, void *ptr)
96 {
97 for(int i=0; i<arr->num; i++)
98 if(arr->arr[i] == ptr) return cpTrue;
99
100 return cpFalse;
101 }
102