On Mar 12, 2007, at 5:11 PM, Neely Grady-W30566 wrote:

> The problem I run into is the bitmask will need to be shifted  
> depending on where in the byte the interesting bits are.  Is there a  
> way to shift the bitmasks in the hf_ struct?

No.  The bitmask for any given hf_ structure is a constant.

However, there can be more than one hf_ structure for a given field  
name, with different bit masks.

BTW, how do you plan to handle a field that straddles a byte  
boundary?  You can't do that with a 1-byte field, even if the field  
has fewer than 8 bits.
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