Re: [PATCH] index-pack: fix truncation of off_t in comparison

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Jeff King <peff@xxxxxxxx> writes:

> On top of nd/slim-index-pack-memory-usage, which introduced the bug (but
> it is already in master).

Thanks.

In this round, I decided to deliberately merge more iffy and larger
topics to 'master' in early part of the cycle, and it seems to be
paying off nicely ;-).

Will queue.

>  builtin/index-pack.c | 8 ++++++--
>  1 file changed, 6 insertions(+), 2 deletions(-)
>
> diff --git a/builtin/index-pack.c b/builtin/index-pack.c
> index 3ed53e3..06dd973 100644
> --- a/builtin/index-pack.c
> +++ b/builtin/index-pack.c
> @@ -616,7 +616,9 @@ static int compare_ofs_delta_bases(off_t offset1, off_t offset2,
>  	int cmp = type1 - type2;
>  	if (cmp)
>  		return cmp;
> -	return offset1 - offset2;
> +	return offset1 < offset2 ? -1 :
> +	       offset1 > offset2 ?  1 :
> +	       0;
>  }
>  
>  static int find_ofs_delta(const off_t offset, enum object_type type)
> @@ -1051,7 +1053,9 @@ static int compare_ofs_delta_entry(const void *a, const void *b)
>  	const struct ofs_delta_entry *delta_a = a;
>  	const struct ofs_delta_entry *delta_b = b;
>  
> -	return delta_a->offset - delta_b->offset;
> +	return delta_a->offset < delta_b->offset ? -1 :
> +	       delta_a->offset > delta_b->offset ?  1 :
> +	       0;
>  }
>  
>  static int compare_ref_delta_entry(const void *a, const void *b)
--
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