How to write bytes in a NSData obj from a byte array at specified index

Question

I've a byte array and I save it in an NSData object. Now I need to change only some chunk of this NSData object at specified index and save it to file. What is the best way to achieve this without using malloc of new byte array?

`NSMutableData` with `replaceBytesInRange:withBytes:length:`? — Larme, Nov 20 '19 at 09:30

Cynichniy Bandera · Answer 1 · 2019-11-18T20:29:31.120

0

Did you try this?

https://developer.apple.com/documentation/foundation/nsdata/1410616-bytes?language=objc

However, obviously, this way is a little bit cumbersome. If the new data size is different, what will you do?

edited Nov 18 '19 at 20:29

answered Nov 18 '19 at 20:19

Cynichniy Bandera

5,991
2
29
33

How to write bytes in a NSData obj from a byte array at specified index

1 Answers1