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- (void *)mutableItemAtIndex: (size_t)idx
{
if (idx >= _count)
@throw [OFOutOfRangeException exception];
return _items + idx * _itemSize;
}
- (void *)mutableFirstItem
{
if (_items == NULL || _count == 0)
return NULL;
return _items;
}
- (void *)mutableLastItem
{
if (_items == NULL || _count == 0)
return NULL;
return _items + (_count - 1) * _itemSize;
}
- (OFData *)subdataWithRange: (of_range_t)range
{
if (range.length > SIZE_MAX - range.location ||
range.location + range.length > _count)
@throw [OFOutOfRangeException exception];
|