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56 lines
1.1 KiB
Objective-C
56 lines
1.1 KiB
Objective-C
#import "YSArray.h"
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#include <string.h>
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#include <stdio.h>
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@implementation YSArray
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-(id) init {
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self = [super init];
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array = NULL;
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return self;
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}
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-(void) addObject: (id) theObject {
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printf("%s\n", "YSArray: addObject");
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if (array == NULL) {
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printf("%s\n", "before malloc");
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array = malloc(sizeof(id));
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if (array == NULL) {
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printf("%s\n", "addObject: malloc failed.");
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return;
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}
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printf("%s\n", "after malloc");
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} else {
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printf("%s\n", "before realloc");
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array = realloc(array, count * sizeof(id));
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if (array == NULL) {
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printf("%s\n", "addObject: realloc failed.");
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return;
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}
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}
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array[count++] = theObject;
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printf("%s\n", "YSArray: object added.");
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}
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-(void) removeObject: (unsigned int) index {
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if (count == 0 || count == 1) {
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array[0] = NULL;
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return;
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}
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if (index >= count) {
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return;
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}
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if (index == count - 1) {
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array[count - 1] = NULL;
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}
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//hope count > index;
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memcpy(&array[index], &array[index + 1], (count - index) * sizeof(id));
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}
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@end |