Re: Byte swapping using NSInputStream
Re: Byte swapping using NSInputStream
- Subject: Re: Byte swapping using NSInputStream
- From: Ricky Sharp <email@hidden>
- Date: Mon, 30 Apr 2007 20:10:09 -0500
On Apr 30, 2007, at 5:00 PM, Martin wrote:
Hello list,
Can someone point me in the direction of how to sway the byte order
of data read via NSInputStream?
I am writing an application on a G5 (10.4) that needs to read a
data file from a Windows Share, I have got the stream reading the
file, but I guess it is reading in big endian order. What order
would the bytes be read if the application was on a Intel based Mac?
I believe that the stream is just giving you a stream of bytes.
Having said that, you'll need to look at the data format of your
file. Only then will you know if it contains data that potentially
needs to be swapped.
The file's data is most likely little endian. You can then use APIs
such as NSSwapLittleIntToHost to ensure swapping will occur should
the host computer have a different endianness.
I tend to gravitate though to the CFSwap-based APIs since they
explicitly call out the size (e.g. CFSwapInt64LittleToHost)
___________________________________________________________
Ricky A. Sharp mailto:email@hidden
Instant Interactive(tm) http://www.instantinteractive.com
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