From: Jens Gustedt <jens.gustedt@inria.fr>
To: musl@lists.openwall.com
Subject: Re: [PATCH v2] shadow: Implement putspent
Date: Wed, 06 Nov 2013 14:20:54 +0100 [thread overview]
Message-ID: <1383744054.23727.44.camel@eris.loria.fr> (raw)
In-Reply-To: <20131105233148.GJ24286@brightrain.aerifal.cx>
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Hi Rich,
Am Dienstag, den 05.11.2013, 18:31 -0500 schrieb Rich Felker:
> While it doesn't really matter in this file, in general, macro
> arguments should be properly parenthesized, as in:
> +#define NUM(n) ((n) == -1 ? 0 : -1), ((n) == -1 ? 0 : (n))
for such a macro that is replacing two function arguments, I'd go for
a much more descriptive name, something like NUM2ARGS
> +#define STR(s) ((s) ? (s) : "")
in the context of the actual function that would certainly overkill,
but generally it is not a good idea to mix user strings and string
literals without consting them. So in a general context I'd go for
something like
#define STR(S) ((char const*)((S) ? (S) : ""))
or even
#define STR(S) ((S) ? (char const*){ (S) } : "")
to have a better type check for the argument
Jens
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next prev parent reply other threads:[~2013-11-06 13:20 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-05 7:47 [PATCH] " Michael Forney
2013-11-05 19:24 ` Rich Felker
2013-11-05 22:30 ` [PATCH v2] " Michael Forney
2013-11-05 23:31 ` Rich Felker
2013-11-06 13:20 ` Jens Gustedt [this message]
2013-11-06 16:36 ` Rich Felker
2013-11-07 22:35 ` Jens Gustedt
2013-11-08 0:37 ` Szabolcs Nagy
2013-11-24 6:10 ` [PATCH v3] " Michael Forney
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