NSMutableData字节的总和

Question

I would like to have a sum of NSMutableData bytes, is this possible with a quick method, or I should implement my own?

I have NSMutableData <4b01000F 00000005> and I would like to know sum of all bytes (4b + 01 + 00 + 0F + etc).

Answer 1

I don't think there's a built-in function. Sounds like you're trying to build some sort of checksum. You'll have to iterate through the bytes and start adding.

You might find this useful however: https://discussions.apple.com/thread/1509152?threadID=1509152&tstart=96