Re: [Evolution-hackers] Why a bitfield in CamelOfflineFolder?



On Thu, 2006-11-30 at 12:08 -0500, Matthew Barnes wrote:
> On Thu, 2006-11-30 at 11:51 -0500, Jeffrey Stedfast wrote:
> > wow, that came out totally wrong...
> > 
> > using a single bit allows us to extend the structure with more bitfields
> > w/o breaking ABI if we find we need to.
> > 
> > it's akin to having:
> > 
> > unsigned int sync_offline:1;
> > unsigned int unused:31;
> 
> I'm just curious, but what's the advantage of bitfields over just having
> an integer field called "flags" and defining the individual flags as
> enum values?  The latter approach has all the advantages that Jeff
> enumerated, but it also allows you to work with groups of flags at once
> (e.g. masking, copying, etc.).  Perhaps that's not relevant for this
> particular case?

in this particular case, it's unlikely that usage would be useful.

> 
> Matthew Barnes
> 
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-- 
Jeffrey Stedfast
Desktop Hacker - Novell, Inc.
fejj novell com  - www.novell.com




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