Question

I need to do bit operations on representations of arbitrary precision numbers in Objective C. So far I have been using NSData objects to hold the numbers – is there a way to bit shift the content of those? If not, is there a different way to achieve this?

Answer 1

Using NSMutableData you can fetch the byte in a char, shift your bits and replace it with -replaceBytesInRange:withBytes:.

I don’t see any other solution except for writing your own date holder class using a char * buffer to hold the raw data.