From: Johannes Sixt <j.sixt@viscovery.net>
Date: Tue, 06 Nov 2007 09:18:02 GMT
Subject: Re: [PATCH 4/4] Implement git commit and status as a builtin commands.
Message-ID: <4730314A.9010403@viscovery.net>
In-Reply-To: <20071106091222.GE4435@artemis.corp>

Pierre Habouzit schrieb:
> Btw, I'm starting to work slowly on the diff_opt_parse conversion to the
> macro we discussed, and the need for new option parsing callbacks
> arised, and I've created a:
> 
>   parse_opt_mask_{or,and,xor} commands that you declare this way:
> 
>     OPT_MASK_OR('a', "all",         &mode, "...", MASK_ALL),
>     OPT_MASK_OR('i', "interactive", &mode, "...", MASK_INTERACTIVE),
>     ...
> 
> And if you chose MASK_ALL/INTERACTIVE/.. to be single bits,
> 
>     if (!!all + !!interactive ... > 1)
> 
> becomes[0]:
> 
>     if (mode & (mode - 1)) {
> 
>     }

This goes too far, IMHO. That's unnecessary cleverness/microoptimization at 
the expense of readability.

-- Hannes