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Re: [PATCH 2/4] commit-slab.h: avoid -Wsign-compare warnings

From
Jeff King <peff@peff.net>
Date
Sep 22, 2017, 05:29 UTC
Message-ID
<20170922052916.fiafkbykroenq65n@sigill.intra.peff.net>
In-Reply-To
<f120046a-f0b3-6199-a2fc-65a5fd37c0a3@ramsayjones.plus.com>
On Thu, Sep 21, 2017 at 05:47:36PM +0100, Ramsay Jones wrote:
Show 19 quoted lines
> diff --git a/commit-slab.h b/commit-slab.h
> index 333d81e37..dcaab8ca0 100644
> --- a/commit-slab.h
> +++ b/commit-slab.h
> @@ -78,7 +78,7 @@ static MAYBE_UNUSED void init_ ##slabname(struct slabname *s)		\
>  									\
>  static MAYBE_UNUSED void clear_ ##slabname(struct slabname *s)		\
>  {									\
> -	int i;								\
> +	unsigned int i;							\
>  	for (i = 0; i < s->slab_count; i++)				\
>  		free(s->slab[i]);					\
>  	s->slab_count = 0;						\
> @@ -89,13 +89,13 @@ static MAYBE_UNUSED elemtype *slabname## _at_peek(struct slabname *s,	\
>  						  const struct commit *c, \
>  						  int add_if_missing)   \
>  {									\
> -	int nth_slab, nth_slot;						\
> +	unsigned int nth_slab, nth_slot;				\

I have a feeling that in the long run these should all be size_t, but it's probably pretty unlikely to overflow in practice. At any rate, the slab index itself is an unsigned, so it probably makes sense to match that for now.

-Peff
Previous: Ramsay JonesNext: Ramsay Jones
Message 2 of 4 in “commit-slab.h: avoid -Wsign-compare warnings”
  1. 2/4 commit-slab.h: avoid -Wsign-compare warningsRamsay Jones, Sep 21, 2017
  2. Jeff KingSep 22, 2017
  3. Ramsay JonesSep 22, 2017
  4. Jeff KingSep 22, 2017

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