ObjFW  Diff

}

- (instancetype)init
{
	self = [super init];

	_itemSize = 1;
	_freeWhenDone = true;

	return self;
}

- (instancetype)initWithItemSize: (size_t)itemSize
{
	self = [super init];

	@try {
		if (itemSize == 0)
			@throw [OFInvalidArgumentException exception];

		_itemSize = itemSize;
		_freeWhenDone = true;
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}

{
	self = [super init];

	@try {
		if (itemSize == 0)
			@throw [OFInvalidArgumentException exception];

		_items = [self allocMemoryWithSize: itemSize
					     count: capacity];

		_items = of_malloc(capacity, itemSize);
		_itemSize = itemSize;
		_capacity = capacity;
		_freeWhenDone = true;
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}

- (instancetype)initWithItems: (const void *)items
		     itemSize: (size_t)itemSize
			count: (size_t)count
		     itemSize: (size_t)itemSize
{
	self = [super initWithItems: items
			      count: count
			   itemSize: itemSize
			   itemSize: itemSize];
			      count: count];

	_capacity = _count;

	return self;
}

- (instancetype)initWithItemsNoCopy: (void *)items
			   itemSize: (size_t)itemSize
			      count: (size_t)count
			   itemSize: (size_t)itemSize
		       freeWhenDone: (bool)freeWhenDone
{
	self = [self initWithItems: items
			     count: count
			  itemSize: itemSize
			  itemSize: itemSize];
			     count: count];

	if (freeWhenDone)
		free(items);

	return self;
}

- (OFData *)subdataWithRange: (of_range_t)range
{
	if (range.length > SIZE_MAX - range.location ||
	    range.location + range.length > _count)
		@throw [OFOutOfRangeException exception];

	return [OFData dataWithItems: _items + (range.location * _itemSize)
			       count: range.length
			    itemSize: _itemSize
			    itemSize: _itemSize];
			       count: range.length];
}

- (void)addItem: (const void *)item
{
	if (SIZE_MAX - _count < 1)
		@throw [OFOutOfRangeException exception];

	if (_count + 1 > _capacity) {
		_items = [self resizeMemory: _items
		_items = of_realloc(_items, _count + 1, _itemSize);
				       size: _itemSize
				      count: _count + 1];
		_capacity = _count + 1;
	}

	memcpy(_items + _count * _itemSize, item, _itemSize);

	_count++;
}

- (void)addItems: (const void *)items
	   count: (size_t)count
{
	if (count > SIZE_MAX - _count)
		@throw [OFOutOfRangeException exception];

	if (_count + count > _capacity) {
		_items = [self resizeMemory: _items
				       size: _itemSize
				      count: _count + count];
		_items = of_realloc(_items, _count + count, _itemSize);
		_capacity = _count + count;
	}

	memcpy(_items + _count * _itemSize, items, count * _itemSize);
	_count += count;
}

- (void)insertItems: (const void *)items
	    atIndex: (size_t)idx
	      count: (size_t)count
{
	if (count > SIZE_MAX - _count || idx > _count)
		@throw [OFOutOfRangeException exception];

	if (_count + count > _capacity) {
		_items = [self resizeMemory: _items
				       size: _itemSize
				      count: _count + count];
		_items = of_realloc(_items, _count + count, _itemSize);
		_capacity = _count + count;
	}

	memmove(_items + (idx + count) * _itemSize, _items + idx * _itemSize,
	    (_count - idx) * _itemSize);
	memcpy(_items + idx * _itemSize, items, count * _itemSize);

	_count += count;
}

- (void)increaseCountBy: (size_t)count
{
	if (count > SIZE_MAX - _count)
		@throw [OFOutOfRangeException exception];

	if (_count + count > _capacity) {
		_items = [self resizeMemory: _items
				       size: _itemSize
				      count: _count + count];
		_items = of_realloc(_items, _count + count, _itemSize);
		_capacity = _count + count;
	}

	memset(_items + _count * _itemSize, '\0', count * _itemSize);
	_count += count;
}

	memmove(_items + range.location * _itemSize,
	    _items + (range.location + range.length) * _itemSize,
	    (_count - range.location - range.length) * _itemSize);

	_count -= range.length;
	@try {
		_items = [self resizeMemory: _items
		_items = of_realloc(_items, _count, _itemSize);
				       size: _itemSize
				      count: _count];
		_capacity = _count;
	} @catch (OFOutOfMemoryException *e) {
		/* We don't really care, as we only made it smaller */
	}
}

- (void)removeLastItem
{
	if (_count == 0)
		return;

	_count--;
	@try {
		_items = [self resizeMemory: _items
		_items = of_realloc(_items, _count, _itemSize);
				       size: _itemSize
				      count: _count];
		_capacity = _count;
	} @catch (OFOutOfMemoryException *e) {
		/* We don't care, as we only made it smaller */
	}
}

- (void)removeAllItems
{
	[self freeMemory: _items];

	free(_items);
	_items = NULL;
	_count = 0;
	_capacity = 0;
}

- (id)copy
{
	return [[OFData alloc] initWithItems: _items
				       count: _count
				    itemSize: _itemSize
				    itemSize: _itemSize];
				       count: _count];
}

- (void)makeImmutable
{
	if (_capacity != _count) {
		@try {
			_items = of_realloc(_items, _count, _itemSize);
			_capacity = _count;
		} @catch (OFOutOfMemoryException *e) {
			/* We don't care, as we only made it smaller */
		}
	}

	object_setClass(self, [OFData class]);
}
@end