Re: [PATCH 03/11] revert: Introduce a struct to parse command-line options into

From: Ramkumar Ramachandra <artagnon@gmail.com>
Date: May 8, 2011, 12:18 UTC
Message-ID: <20110508121839.GD3114@ramkum.desktop.amazon.com>
In-Reply-To: <20110410192154.GB28163@elie>

Hi Jonathan,

Jonathan Nieder writes:

Show 27 quoted lines

> Ramkumar Ramachandra wrote:
> > --- a/builtin/revert.c
> > +++ b/builtin/revert.c
> > @@ -35,17 +35,27 @@ static const char * const cherry_pick_usage[] = {
> >  	NULL
> >  };
> >  
> > -static int edit, no_replay, no_commit, mainline, signoff, allow_ff;
> > -static enum { REVERT, CHERRY_PICK } action;
> > -static int commit_argc;
> > -static const char **commit_argv;
> > -static int allow_rerere_auto;
> >  
> > +static struct {
> > +	enum { REVERT, CHERRY_PICK } action;
> 
> That would require giving this struct a name, so it can be passed
> around.  Not a bad idea anyway imho since then a person reading
> top-to-bottom is not left in suspense:
> 
>  struct cherry_pick_opts {
> 	enum { REVERT, CHERRY_PICK } action;
> 
> 	unsigned edit:1;
> 	unsigned no_replay:1;
> 	...
>  };

Thanks.  A couple of nits:
1. You can't take the address of a bitfield, so 'edit' and 'replay'
   can't be passed to the command line argument parsing framework
   directly.
2. GCC throws a "warning: useless storage class specifier in empty
   declaration" for this kind of declaration.

-- Ram