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Re: float from NSData

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Re: float from NSData

Subject: Re: float from NSData
From: Graham Cox <email@hidden>
Date: Tue, 3 Mar 2009 12:42:01 +1100


On 03/03/2009, at 12:32 PM, Jay Kickliter wrote:

I have a case where I'm sending IEEE 754 32-bit floats to my Cocoa program over a wireless serial link, they are being sent MSB first. I'm using AMSerialPort to handle my data, and after a little parsing, I'm left with a 4 byte NSData, which has the 32-bit float split into 4 bytes.

I know I have to play around to make sure the bytes are in the right order. But what I can't seem to figure out, is how I create a float from those 4 bytes stored in an instance of NSData. Has anybody run into this situation?_______________________________________________

Have a look at NSSwapBigFloatToHost and friends

--Graham


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