Re: [WIP PATCH] diff: add option to ignore whitespaces for move detection only

> Brandon Williams <bmwill@google.com> writes:
>
>> One simple idea would be to convert the single 'flag' into various bit
>> fields themselves, that way if you need to add a new flag you would just
>> make a new bit field.  I'm unaware of any downsides of doing so (though
>> i may be missing something) but doing so would probably cause a bit of
>> code churn.
>
> The reason why people want to have their own bit in the flags word
> is because they want to use DIFF_OPT_{SET,CLR,TST,TOUCHED} but they
> do not want to do the work to extend them beyond a single word.  
>
> I think it is doable by making everything a 1-bit wide bitfield
> without affecting existing users.